December 2023 - Linux-stable-mirror

stable-rc/queue/5.4 build: 17 builds: 0 failed, 17 passed, 26 warnings (v5.4.264-28-ga66d9753d0f37)

by kernelci.org bot

stable-rc/queue/5.4 build: 17 builds: 0 failed, 17 passed, 26 warnings (v5.4.264-28-ga66d9753d0f37) Full Build Summary: https://kernelci.org/build/stable-rc/branch/queue%2F5.4/kernel/v5.4.264-28-… Tree: stable-rc Branch: queue/5.4 Git Describe: v5.4.264-28-ga66d9753d0f37 Git Commit: a66d9753d0f37653cc05ac56ee7dbb6bd9a57ab0 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 7 unique architectures Warnings Detected: arc: arm64: defconfig (gcc-10): 2 warnings defconfig+arm64-chromebook (gcc-10): 2 warnings arm: i386: allnoconfig (gcc-10): 2 warnings i386_defconfig (gcc-10): 2 warnings tinyconfig (gcc-10): 2 warnings mips: riscv: x86_64: allnoconfig (gcc-10): 4 warnings tinyconfig (gcc-10): 4 warnings x86_64_defconfig (gcc-10): 4 warnings x86_64_defconfig+x86-board (gcc-10): 4 warnings Warnings summary: 7 ld: warning: creating DT_TEXTREL in a PIE 4 ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' 4 arch/arm64/include/asm/memory.h:238:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 3 ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' 2 arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. 2 arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call 2 arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call 2 arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' Section mismatches summary: 1 WARNING: vmlinux.o(___ksymtab_gpl+vic_init_cascaded+0x0): Section mismatch in reference from the variable __ksymtab_vic_init_cascaded to the function .init.text:vic_init_cascaded() ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- defconfig (riscv, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm64/include/asm/memory.h:238:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] arch/arm64/include/asm/memory.h:238:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] -------------------------------------------------------------------------------- defconfig+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm64/include/asm/memory.h:238:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] arch/arm64/include/asm/memory.h:238:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: vmlinux.o(___ksymtab_gpl+vic_init_cascaded+0x0): Section mismatch in reference from the variable __ksymtab_vic_init_cascaded to the function .init.text:vic_init_cascaded() -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.S:1756: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x151: unsupported intra-function call ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- x86_64_defconfig+x86-board (x86_64, gcc-10) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_64.o: warning: objtool: .entry.text+0x1c1: unsupported intra-function call arch/x86/entry/entry_64.o: warning: objtool: If this is a retpoline, please patch it in with alternatives and annotate it with ANNOTATE_NOSPEC_ALTERNATIVE. ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE --- For more info write to <info(a)kernelci.org>

1 year, 5 months

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stable-rc/queue/4.14 build: 16 builds: 0 failed, 16 passed, 21 warnings (v4.14.333-20-g89c87325d4d1e)

by kernelci.org bot

stable-rc/queue/4.14 build: 16 builds: 0 failed, 16 passed, 21 warnings (v4.14.333-20-g89c87325d4d1e) Full Build Summary: https://kernelci.org/build/stable-rc/branch/queue%2F4.14/kernel/v4.14.333-2… Tree: stable-rc Branch: queue/4.14 Git Describe: v4.14.333-20-g89c87325d4d1e Git Commit: 89c87325d4d1eadfc145aada8f449c7c17489b63 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arm64: arm: i386: allnoconfig (gcc-10): 3 warnings i386_defconfig (gcc-10): 3 warnings tinyconfig (gcc-10): 3 warnings mips: x86_64: allnoconfig (gcc-10): 3 warnings tinyconfig (gcc-10): 3 warnings x86_64_defconfig (gcc-10): 3 warnings x86_64_defconfig+x86-board (gcc-10): 3 warnings Warnings summary: 7 ld: warning: creating DT_TEXTREL in a PIE 4 ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' 4 Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h' 3 ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' 3 arch/x86/entry/entry_32.S:480: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' Section mismatches summary: 3 WARNING: modpost: Found 1 section mismatch(es). ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_32.S:480: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- defconfig (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- defconfig+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_32.S:480: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches Section mismatches: WARNING: modpost: Found 1 section mismatch(es). -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: arch/x86/entry/entry_32.S:480: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' ld: arch/x86/boot/compressed/head_32.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE -------------------------------------------------------------------------------- x86_64_defconfig+x86-board (x86_64, gcc-10) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: Warning: synced file at 'tools/objtool/arch/x86/include/asm/insn.h' differs from latest kernel version at 'arch/x86/include/asm/insn.h' ld: arch/x86/boot/compressed/head_64.o: warning: relocation in read-only section `.head.text' ld: warning: creating DT_TEXTREL in a PIE --- For more info write to <info(a)kernelci.org>

1 year, 5 months

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patch "serial: sc16is7xx: fix unconditional activation of THRI interrupt" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: fix unconditional activation of THRI interrupt to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 9915753037eba7135b209fef4f2afeca841af816 Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:53 -0500 Subject: serial: sc16is7xx: fix unconditional activation of THRI interrupt Commit cc4c1d05eb10 ("sc16is7xx: Properly resume TX after stop") changed behavior to unconditionnaly set the THRI interrupt in sc16is7xx_tx_proc(). For example when sending a 65 bytes message, and assuming the Tx FIFO is initially empty, sc16is7xx_handle_tx() will write the first 64 bytes of the message to the FIFO and sc16is7xx_tx_proc() will then activate THRI. When the THRI IRQ is fired, the driver will write the remaining byte of the message to the FIFO, and disable THRI by calling sc16is7xx_stop_tx(). When sending a 2 bytes message, sc16is7xx_handle_tx() will write the 2 bytes of the message to the FIFO and call sc16is7xx_stop_tx(), disabling THRI. After sc16is7xx_handle_tx() exits, control returns to sc16is7xx_tx_proc() which will unconditionally set THRI. When the THRI IRQ is fired, the driver simply acknowledges the interrupt and does nothing more, since all the data has already been written to the FIFO. This results in 2 register writes and 4 register reads all for nothing and taking precious cycles from the I2C/SPI bus. Fix this by enabling the THRI interrupt only when we fill the Tx FIFO to its maximum capacity and there are remaining bytes to send in the message. Fixes: cc4c1d05eb10 ("sc16is7xx: Properly resume TX after stop") Cc: <stable(a)vger.kernel.org> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-7-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 7e4b9b52841d..e40e4a99277e 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -687,6 +687,8 @@ static void sc16is7xx_handle_tx(struct uart_port *port) if (uart_circ_empty(xmit)) sc16is7xx_stop_tx(port); + else + sc16is7xx_ier_set(port, SC16IS7XX_IER_THRI_BIT); uart_port_unlock_irqrestore(port, flags); } @@ -815,7 +817,6 @@ static void sc16is7xx_tx_proc(struct kthread_work *ws) { struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); - unsigned long flags; if ((port->rs485.flags & SER_RS485_ENABLED) && (port->rs485.delay_rts_before_send > 0)) @@ -824,10 +825,6 @@ static void sc16is7xx_tx_proc(struct kthread_work *ws) mutex_lock(&one->efr_lock); sc16is7xx_handle_tx(port); mutex_unlock(&one->efr_lock); - - uart_port_lock_irqsave(port, &flags); - sc16is7xx_ier_set(port, SC16IS7XX_IER_THRI_BIT); - uart_port_unlock_irqrestore(port, flags); } static void sc16is7xx_reconf_rs485(struct uart_port *port) -- 2.43.0

1 year, 5 months

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patch "serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From dbf4ab821804df071c8b566d9813083125e6d97b Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:52 -0500 Subject: serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for FIFO The SC16IS7XX IC supports a burst mode to access the FIFOs where the initial register address is sent ($00), followed by all the FIFO data without having to resend the register address each time. In this mode, the IC doesn't increment the register address for each R/W byte. The regmap_raw_read() and regmap_raw_write() are functions which can perform IO over multiple registers. They are currently used to read/write from/to the FIFO, and although they operate correctly in this burst mode on the SPI bus, they would corrupt the regmap cache if it was not disabled manually. The reason is that when the R/W size is more than 1 byte, these functions assume that the register address is incremented and handle the cache accordingly. Convert FIFO R/W functions to use the regmap _noinc_ versions in order to remove the manual cache control which was a workaround when using the _raw_ versions. FIFO registers are properly declared as volatile so cache will not be used/updated for FIFO accesses. Fixes: dfeae619d781 ("serial: sc16is7xx") Cc: <stable(a)vger.kernel.org> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-6-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 0bda9b74d096..7e4b9b52841d 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -381,9 +381,7 @@ static void sc16is7xx_fifo_read(struct uart_port *port, unsigned int rxlen) struct sc16is7xx_port *s = dev_get_drvdata(port->dev); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); - regcache_cache_bypass(one->regmap, true); - regmap_raw_read(one->regmap, SC16IS7XX_RHR_REG, s->buf, rxlen); - regcache_cache_bypass(one->regmap, false); + regmap_noinc_read(one->regmap, SC16IS7XX_RHR_REG, s->buf, rxlen); } static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send) @@ -398,9 +396,7 @@ static void sc16is7xx_fifo_write(struct uart_port *port, u8 to_send) if (unlikely(!to_send)) return; - regcache_cache_bypass(one->regmap, true); - regmap_raw_write(one->regmap, SC16IS7XX_THR_REG, s->buf, to_send); - regcache_cache_bypass(one->regmap, false); + regmap_noinc_write(one->regmap, SC16IS7XX_THR_REG, s->buf, to_send); } static void sc16is7xx_port_update(struct uart_port *port, u8 reg, @@ -492,6 +488,11 @@ static bool sc16is7xx_regmap_precious(struct device *dev, unsigned int reg) return false; } +static bool sc16is7xx_regmap_noinc(struct device *dev, unsigned int reg) +{ + return reg == SC16IS7XX_RHR_REG; +} + static int sc16is7xx_set_baud(struct uart_port *port, int baud) { struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); @@ -1709,6 +1710,10 @@ static struct regmap_config regcfg = { .cache_type = REGCACHE_RBTREE, .volatile_reg = sc16is7xx_regmap_volatile, .precious_reg = sc16is7xx_regmap_precious, + .writeable_noinc_reg = sc16is7xx_regmap_noinc, + .readable_noinc_reg = sc16is7xx_regmap_noinc, + .max_raw_read = SC16IS7XX_FIFO_SIZE, + .max_raw_write = SC16IS7XX_FIFO_SIZE, .max_register = SC16IS7XX_EFCR_REG, }; -- 2.43.0

1 year, 5 months

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patch "serial: sc16is7xx: change EFR lock to operate on each channels" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: change EFR lock to operate on each channels to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 4409df5866b7ff7686ba27e449ca97a92ee063c9 Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:51 -0500 Subject: serial: sc16is7xx: change EFR lock to operate on each channels Now that the driver has been converted to use one regmap per port, change efr locking to operate on a channel basis instead of on the whole IC. Fixes: 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port") Cc: <stable(a)vger.kernel.org> # 6.1.x: 3837a03 serial: sc16is7xx: improve regmap debugfs by using one regmap per port Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-5-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 49 ++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 23 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 0a7a9aa5c9fa..0bda9b74d096 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -323,6 +323,7 @@ struct sc16is7xx_one_config { struct sc16is7xx_one { struct uart_port port; struct regmap *regmap; + struct mutex efr_lock; /* EFR registers access */ struct kthread_work tx_work; struct kthread_work reg_work; struct kthread_delayed_work ms_work; @@ -342,7 +343,6 @@ struct sc16is7xx_port { unsigned char buf[SC16IS7XX_FIFO_SIZE]; struct kthread_worker kworker; struct task_struct *kworker_task; - struct mutex efr_lock; struct sc16is7xx_one p[]; }; @@ -494,7 +494,6 @@ static bool sc16is7xx_regmap_precious(struct device *dev, unsigned int reg) static int sc16is7xx_set_baud(struct uart_port *port, int baud) { - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); u8 lcr; u8 prescaler = 0; @@ -518,7 +517,7 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud) * because the bulk of the interrupt processing is run as a workqueue * job in thread context. */ - mutex_lock(&s->efr_lock); + mutex_lock(&one->efr_lock); lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG); @@ -537,7 +536,7 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud) /* Put LCR back to the normal mode */ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr); - mutex_unlock(&s->efr_lock); + mutex_unlock(&one->efr_lock); sc16is7xx_port_update(port, SC16IS7XX_MCR_REG, SC16IS7XX_MCR_CLKSEL_BIT, @@ -705,11 +704,10 @@ static unsigned int sc16is7xx_get_hwmctrl(struct uart_port *port) static void sc16is7xx_update_mlines(struct sc16is7xx_one *one) { struct uart_port *port = &one->port; - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); unsigned long flags; unsigned int status, changed; - lockdep_assert_held_once(&s->efr_lock); + lockdep_assert_held_once(&one->efr_lock); status = sc16is7xx_get_hwmctrl(port); changed = status ^ one->old_mctrl; @@ -735,15 +733,20 @@ static void sc16is7xx_update_mlines(struct sc16is7xx_one *one) static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) { + bool rc = true; struct uart_port *port = &s->p[portno].port; + struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); + + mutex_lock(&one->efr_lock); do { unsigned int iir, rxlen; - struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG); - if (iir & SC16IS7XX_IIR_NO_INT_BIT) - return false; + if (iir & SC16IS7XX_IIR_NO_INT_BIT) { + rc = false; + goto out_port_irq; + } iir &= SC16IS7XX_IIR_ID_MASK; @@ -783,15 +786,17 @@ static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno) break; } } while (0); - return true; + +out_port_irq: + mutex_unlock(&one->efr_lock); + + return rc; } static irqreturn_t sc16is7xx_irq(int irq, void *dev_id) { struct sc16is7xx_port *s = (struct sc16is7xx_port *)dev_id; - mutex_lock(&s->efr_lock); - while (1) { bool keep_polling = false; int i; @@ -802,24 +807,22 @@ static irqreturn_t sc16is7xx_irq(int irq, void *dev_id) break; } - mutex_unlock(&s->efr_lock); - return IRQ_HANDLED; } static void sc16is7xx_tx_proc(struct kthread_work *ws) { struct uart_port *port = &(to_sc16is7xx_one(ws, tx_work)->port); - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); + struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); unsigned long flags; if ((port->rs485.flags & SER_RS485_ENABLED) && (port->rs485.delay_rts_before_send > 0)) msleep(port->rs485.delay_rts_before_send); - mutex_lock(&s->efr_lock); + mutex_lock(&one->efr_lock); sc16is7xx_handle_tx(port); - mutex_unlock(&s->efr_lock); + mutex_unlock(&one->efr_lock); uart_port_lock_irqsave(port, &flags); sc16is7xx_ier_set(port, SC16IS7XX_IER_THRI_BIT); @@ -926,9 +929,9 @@ static void sc16is7xx_ms_proc(struct kthread_work *ws) struct sc16is7xx_port *s = dev_get_drvdata(one->port.dev); if (one->port.state) { - mutex_lock(&s->efr_lock); + mutex_lock(&one->efr_lock); sc16is7xx_update_mlines(one); - mutex_unlock(&s->efr_lock); + mutex_unlock(&one->efr_lock); kthread_queue_delayed_work(&s->kworker, &one->ms_work, HZ); } @@ -1012,7 +1015,6 @@ static void sc16is7xx_set_termios(struct uart_port *port, struct ktermios *termios, const struct ktermios *old) { - struct sc16is7xx_port *s = dev_get_drvdata(port->dev); struct sc16is7xx_one *one = to_sc16is7xx_one(port, port); unsigned int lcr, flow = 0; int baud; @@ -1071,7 +1073,7 @@ static void sc16is7xx_set_termios(struct uart_port *port, port->ignore_status_mask |= SC16IS7XX_LSR_BRK_ERROR_MASK; /* As above, claim the mutex while accessing the EFR. */ - mutex_lock(&s->efr_lock); + mutex_lock(&one->efr_lock); sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, SC16IS7XX_LCR_CONF_MODE_B); @@ -1101,7 +1103,7 @@ static void sc16is7xx_set_termios(struct uart_port *port, /* Update LCR register */ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr); - mutex_unlock(&s->efr_lock); + mutex_unlock(&one->efr_lock); /* Get baud rate generator configuration */ baud = uart_get_baud_rate(port, termios, old, @@ -1535,7 +1537,6 @@ static int sc16is7xx_probe(struct device *dev, s->devtype = devtype; dev_set_drvdata(dev, s); - mutex_init(&s->efr_lock); kthread_init_worker(&s->kworker); s->kworker_task = kthread_run(kthread_worker_fn, &s->kworker, @@ -1578,6 +1579,8 @@ static int sc16is7xx_probe(struct device *dev, goto out_ports; } + mutex_init(&s->p[i].efr_lock); + ret = uart_get_rs485_mode(&s->p[i].port); if (ret) goto out_ports; -- 2.43.0

1 year, 5 months

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patch "serial: sc16is7xx: remove unused line structure member" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: remove unused line structure member to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 41a308cbedb2a68a6831f0f2e992e296c4b8aff0 Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:50 -0500 Subject: serial: sc16is7xx: remove unused line structure member Now that the driver has been converted to use one regmap per port, the line structure member is no longer used, so remove it. Fixes: 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port") Cc: <stable(a)vger.kernel.org> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-4-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index a4ad3ae8cae2..0a7a9aa5c9fa 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -322,7 +322,6 @@ struct sc16is7xx_one_config { struct sc16is7xx_one { struct uart_port port; - u8 line; struct regmap *regmap; struct kthread_work tx_work; struct kthread_work reg_work; @@ -1552,7 +1551,6 @@ static int sc16is7xx_probe(struct device *dev, SC16IS7XX_IOCONTROL_SRESET_BIT); for (i = 0; i < devtype->nr_uart; ++i) { - s->p[i].line = i; /* Initialize port data */ s->p[i].port.dev = dev; s->p[i].port.irq = irq; -- 2.43.0

1 year, 5 months

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patch "serial: sc16is7xx: remove global regmap from struct sc16is7xx_port" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: remove global regmap from struct sc16is7xx_port to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From f6959c5217bd799bcb770b95d3c09b3244e175c6 Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:49 -0500 Subject: serial: sc16is7xx: remove global regmap from struct sc16is7xx_port Remove global struct regmap so that it is more obvious that this regmap is to be used only in the probe function. Also add a comment to that effect in probe function. Fixes: 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port") Cc: <stable(a)vger.kernel.org> Suggested-by: Andy Shevchenko <andy.shevchenko(a)gmail.com> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-3-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 8d1de4982b65..a4ad3ae8cae2 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -334,7 +334,6 @@ struct sc16is7xx_one { struct sc16is7xx_port { const struct sc16is7xx_devtype *devtype; - struct regmap *regmap; struct clk *clk; #ifdef CONFIG_GPIOLIB struct gpio_chip gpio; @@ -1434,7 +1433,8 @@ static void sc16is7xx_setup_irda_ports(struct sc16is7xx_port *s) /* * Configure ports designated to operate as modem control lines. */ -static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s) +static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s, + struct regmap *regmap) { int i; int ret; @@ -1463,7 +1463,7 @@ static int sc16is7xx_setup_mctrl_ports(struct sc16is7xx_port *s) if (s->mctrl_mask) regmap_update_bits( - s->regmap, + regmap, SC16IS7XX_IOCONTROL_REG, SC16IS7XX_IOCONTROL_MODEM_A_BIT | SC16IS7XX_IOCONTROL_MODEM_B_BIT, s->mctrl_mask); @@ -1495,6 +1495,10 @@ static int sc16is7xx_probe(struct device *dev, * This device does not have an identification register that would * tell us if we are really connected to the correct device. * The best we can do is to check if communication is at all possible. + * + * Note: regmap[0] is used in the probe function to access registers + * common to all channels/ports, as it is guaranteed to be present on + * all variants. */ ret = regmap_read(regmaps[0], SC16IS7XX_LSR_REG, &val); if (ret < 0) @@ -1530,7 +1534,6 @@ static int sc16is7xx_probe(struct device *dev, return -EINVAL; } - s->regmap = regmaps[0]; s->devtype = devtype; dev_set_drvdata(dev, s); mutex_init(&s->efr_lock); @@ -1545,7 +1548,7 @@ static int sc16is7xx_probe(struct device *dev, sched_set_fifo(s->kworker_task); /* reset device, purging any pending irq / data */ - regmap_write(s->regmap, SC16IS7XX_IOCONTROL_REG, + regmap_write(regmaps[0], SC16IS7XX_IOCONTROL_REG, SC16IS7XX_IOCONTROL_SRESET_BIT); for (i = 0; i < devtype->nr_uart; ++i) { @@ -1616,7 +1619,7 @@ static int sc16is7xx_probe(struct device *dev, sc16is7xx_setup_irda_ports(s); - ret = sc16is7xx_setup_mctrl_ports(s); + ret = sc16is7xx_setup_mctrl_ports(s, regmaps[0]); if (ret) goto out_ports; -- 2.43.0

1 year, 5 months

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patch "serial: sc16is7xx: remove wasteful static buffer in" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: sc16is7xx: remove wasteful static buffer in to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 6bcab3c8acc88e265c570dea969fd04f137c8a4c Mon Sep 17 00:00:00 2001 From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Date: Mon, 11 Dec 2023 12:13:48 -0500 Subject: serial: sc16is7xx: remove wasteful static buffer in sc16is7xx_regmap_name() Using a static buffer inside sc16is7xx_regmap_name() was a convenient and simple way to set the regmap name without having to allocate and free a buffer each time it is called. The drawback is that the static buffer wastes memory for nothing once regmap is fully initialized. Remove static buffer and use constant strings instead. This also avoids a truncation warning when using "%d" or "%u" in snprintf which was flagged by kernel test robot. Fixes: 3837a0379533 ("serial: sc16is7xx: improve regmap debugfs by using one regmap per port") Cc: <stable(a)vger.kernel.org> # 6.1.x: 3837a03 serial: sc16is7xx: improve regmap debugfs by using one regmap per port Suggested-by: Andy Shevchenko <andy.shevchenko(a)gmail.com> Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-2-hugo@hugovil.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/sc16is7xx.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 9cb503169a48..8d1de4982b65 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1708,13 +1708,15 @@ static struct regmap_config regcfg = { .max_register = SC16IS7XX_EFCR_REG, }; -static const char *sc16is7xx_regmap_name(unsigned int port_id) +static const char *sc16is7xx_regmap_name(u8 port_id) { - static char buf[6]; - - snprintf(buf, sizeof(buf), "port%d", port_id); - - return buf; + switch (port_id) { + case 0: return "port0"; + case 1: return "port1"; + default: + WARN_ON(true); + return NULL; + } } static unsigned int sc16is7xx_regmap_port_mask(unsigned int port_id) -- 2.43.0

1 year, 5 months

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patch "parport: parport_serial: Add Brainboxes device IDs and geometry" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled parport: parport_serial: Add Brainboxes device IDs and geometry to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 6aa1fc5a8085bbc01687aa708dcf2dbe637a5ee3 Mon Sep 17 00:00:00 2001 From: Cameron Williams <cang1(a)live.co.uk> Date: Thu, 2 Nov 2023 21:07:06 +0000 Subject: parport: parport_serial: Add Brainboxes device IDs and geometry Add device IDs for the Brainboxes UC-203, UC-257, UC-414, UC-475, IS-300/IS-500 and PX-263/PX-295 and define the relevant "geometry" for the cards. This patch requires part 1 of this series. Cc: <stable(a)vger.kernel.org> Signed-off-by: Cameron Williams <cang1(a)live.co.uk> Acked-by: Sudip Mukherjee <sudipm.mukherjee(a)gmail.com> Link: https://lore.kernel.org/r/AS4PR02MB7903A4094564BE28F1F926A6C4A6A@AS4PR02MB7… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/parport/parport_serial.c | 56 ++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c index 11989368611a..3644997a8342 100644 --- a/drivers/parport/parport_serial.c +++ b/drivers/parport/parport_serial.c @@ -285,6 +285,38 @@ static struct pci_device_id parport_serial_pci_tbl[] = { { PCI_VENDOR_ID_SUNIX, PCI_DEVICE_ID_SUNIX_1999, PCI_VENDOR_ID_SUNIX, 0x0104, 0, 0, sunix_5099a }, + /* Brainboxes UC-203 */ + { PCI_VENDOR_ID_INTASHIELD, 0x0bc1, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + { PCI_VENDOR_ID_INTASHIELD, 0x0bc2, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + + /* Brainboxes UC-257 */ + { PCI_VENDOR_ID_INTASHIELD, 0x0861, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + { PCI_VENDOR_ID_INTASHIELD, 0x0862, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + { PCI_VENDOR_ID_INTASHIELD, 0x0863, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + + /* Brainboxes UC-414 */ + { PCI_VENDOR_ID_INTASHIELD, 0x0e61, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc414 }, + + /* Brainboxes UC-475 */ + { PCI_VENDOR_ID_INTASHIELD, 0x0981, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + { PCI_VENDOR_ID_INTASHIELD, 0x0982, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_uc257 }, + + /* Brainboxes IS-300/IS-500 */ + { PCI_VENDOR_ID_INTASHIELD, 0x0da0, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_is300 }, + + /* Brainboxes PX-263/PX-295 */ + { PCI_VENDOR_ID_INTASHIELD, 0x402c, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, brainboxes_px263 }, + { 0, } /* terminate list */ }; MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl); @@ -550,6 +582,30 @@ static struct pciserial_board pci_parport_serial_boards[] = { .base_baud = 921600, .uart_offset = 0x8, }, + [brainboxes_uc257] = { + .flags = FL_BASE2, + .num_ports = 2, + .base_baud = 115200, + .uart_offset = 8, + }, + [brainboxes_is300] = { + .flags = FL_BASE2, + .num_ports = 1, + .base_baud = 115200, + .uart_offset = 8, + }, + [brainboxes_uc414] = { + .flags = FL_BASE2, + .num_ports = 4, + .base_baud = 115200, + .uart_offset = 8, + }, + [brainboxes_px263] = { + .flags = FL_BASE2, + .num_ports = 4, + .base_baud = 921600, + .uart_offset = 8, + }, }; struct parport_serial_private { -- 2.43.0

1 year, 5 months

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patch "parport: parport_serial: Add Brainboxes BAR details" added to char-misc-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled parport: parport_serial: Add Brainboxes BAR details to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 65fde134b0a4ffe838729f9ee11b459a2f6f2815 Mon Sep 17 00:00:00 2001 From: Cameron Williams <cang1(a)live.co.uk> Date: Thu, 2 Nov 2023 21:07:05 +0000 Subject: parport: parport_serial: Add Brainboxes BAR details Add BAR/enum entries for Brainboxes serial/parallel cards. Cc: <stable(a)vger.kernel.org> Signed-off-by: Cameron Williams <cang1(a)live.co.uk> Acked-by: Sudip Mukherjee <sudipm.mukherjee(a)gmail.com> Link: https://lore.kernel.org/r/AS4PR02MB79035155C2D5C3333AE6FA52C4A6A@AS4PR02MB7… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/parport/parport_serial.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/parport/parport_serial.c b/drivers/parport/parport_serial.c index 9f5d784cd95d..11989368611a 100644 --- a/drivers/parport/parport_serial.c +++ b/drivers/parport/parport_serial.c @@ -65,6 +65,10 @@ enum parport_pc_pci_cards { sunix_5069a, sunix_5079a, sunix_5099a, + brainboxes_uc257, + brainboxes_is300, + brainboxes_uc414, + brainboxes_px263, }; /* each element directly indexed from enum list, above */ @@ -158,6 +162,10 @@ static struct parport_pc_pci cards[] = { /* sunix_5069a */ { 1, { { 1, 2 }, } }, /* sunix_5079a */ { 1, { { 1, 2 }, } }, /* sunix_5099a */ { 1, { { 1, 2 }, } }, + /* brainboxes_uc257 */ { 1, { { 3, -1 }, } }, + /* brainboxes_is300 */ { 1, { { 3, -1 }, } }, + /* brainboxes_uc414 */ { 1, { { 3, -1 }, } }, + /* brainboxes_px263 */ { 1, { { 3, -1 }, } }, }; static struct pci_device_id parport_serial_pci_tbl[] = { -- 2.43.0

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