| Message ID | 20201030151207.766857-1-dmitry.baryshkov@linaro.org |
|---|---|
| State | Accepted |
| Commit | 0e720ea8de07843cf5e0c324ff44bec2b6a7e767 |
| Headers | show |
| Series | drm/msm/dsi: do not try reading 28nm vco rate if it's not enabled | expand |
Hello: This patch was applied to qcom/linux.git (refs/heads/for-next): On Fri, 30 Oct 2020 18:12:07 +0300 you wrote: > Reading VCO rate for this PLL can cause boot stalls, if it is not > enabled. Guard clk_hw_get_rate with a call to > dsi_pll_28nm_clk_is_enabled(). > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Here is the summary with links: - drm/msm/dsi: do not try reading 28nm vco rate if it's not enabled https://git.kernel.org/qcom/c/0e720ea8de07 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c index 6dffd7f4a99b..37a1f996a588 100644 --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c @@ -447,7 +447,10 @@ static void dsi_pll_28nm_save_state(struct msm_dsi_pll *pll) cached_state->postdiv1 = pll_read(base + REG_DSI_28nm_PHY_PLL_POSTDIV1_CFG); cached_state->byte_mux = pll_read(base + REG_DSI_28nm_PHY_PLL_VREG_CFG); - cached_state->vco_rate = clk_hw_get_rate(&pll->clk_hw); + if (dsi_pll_28nm_clk_is_enabled(&pll->clk_hw)) + cached_state->vco_rate = clk_hw_get_rate(&pll->clk_hw); + else + cached_state->vco_rate = 0; } static int dsi_pll_28nm_restore_state(struct msm_dsi_pll *pll)
Reading VCO rate for this PLL can cause boot stalls, if it is not enabled. Guard clk_hw_get_rate with a call to dsi_pll_28nm_clk_is_enabled(). Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)