Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

drm/msm/dsi/phy: Program clock inverters in correct register

Since SM8250 all downstream sources program clock inverters in
PLL_CLOCK_INVERTERS_1 register and leave the PLL_CLOCK_INVERTERS as
reset value (0x0). The most recent Hardware Programming Guide for 3 nm,
4 nm, 5 nm and 7 nm PHYs also mention PLL_CLOCK_INVERTERS_1.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Fixes: 1ef7c99d145c ("drm/msm/dsi: add support for 7nm DSI PHY/PLL")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reported-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/634489/
Link: https://lore.kernel.org/r/20250129115504.40080-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

authored by

Krzysztof Kozlowski and committed by
Dmitry Baryshkov
baf49072 5100ae76

+1 -1
+1 -1
drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
··· 306 306 writel(pll->phy->cphy_mode ? 0x00 : 0x10, 307 307 base + REG_DSI_7nm_PHY_PLL_CMODE_1); 308 308 writel(config->pll_clock_inverters, 309 - base + REG_DSI_7nm_PHY_PLL_CLOCK_INVERTERS); 309 + base + REG_DSI_7nm_PHY_PLL_CLOCK_INVERTERS_1); 310 310 } 311 311 312 312 static int dsi_pll_7nm_vco_set_rate(struct clk_hw *hw, unsigned long rate,