5.15-stable review patch. If anyone has any objections, please let me know.
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From: Heiko Stuebner heiko@sntech.de
[ Upstream commit 596a977b34a722c00245801a5774aa79cec4e81d ]
The ddrphy is supplied by the dpll, but due to the limited number of PLLs on the rk3036, the dpll also is used for other periperhals, like the GPU.
So it happened, when the Lima driver turned off the gpu clock, this in turn also disabled the dpll and thus the ram.
Signed-off-by: Heiko Stuebner heiko@sntech.de Link: https://lore.kernel.org/r/20250503202532.992033-4-heiko@sntech.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/rockchip/clk-rk3036.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c index d644bc155ec6e..f5f27535087a3 100644 --- a/drivers/clk/rockchip/clk-rk3036.c +++ b/drivers/clk/rockchip/clk-rk3036.c @@ -431,6 +431,7 @@ static const char *const rk3036_critical_clocks[] __initconst = { "hclk_peri", "pclk_peri", "pclk_ddrupctl", + "ddrphy", };
static void __init rk3036_clk_init(struct device_node *np)