Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH] pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp_pwm. | Date | Mon, 29 Aug 2022 12:04:12 +0800 |
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From: xinlei lee <xinlei.lee@mediatek.com>
In the original mtk_disp_pwm_get_state() function, the result of reading con0 & BIT(0) is enabled as disp_pwm. In order to conform to the register table, we should use the disp_pwm base address as the enabled judgment.
Fixes: 3f2b16734914 ("pwm: mtk-disp: Implement atomic API .get_state()")
Signed-off-by: xinlei lee <xinlei.lee@mediatek.com> Reviewed-by: Miles Chen <miles.chen@mediatek.com> --- Base on the branch of Linux-next/master. Split from series [1]. [1] https://patchwork.kernel.org/project/linux-mediatek/cover/1661239875-19841-1-git-send-email-xinlei.lee@mediatek.com/ --- --- drivers/pwm/pwm-mtk-disp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c index c605013..50425cd 100644 --- a/drivers/pwm/pwm-mtk-disp.c +++ b/drivers/pwm/pwm-mtk-disp.c @@ -197,7 +197,7 @@ static void mtk_disp_pwm_get_state(struct pwm_chip *chip, rate = clk_get_rate(mdp->clk_main); con0 = readl(mdp->base + mdp->data->con0); con1 = readl(mdp->base + mdp->data->con1); - state->enabled = !!(con0 & BIT(0)); + state->enabled = !!(readl(mdp->base) & BIT(0)); clk_div = FIELD_GET(PWM_CLKDIV_MASK, con0); period = FIELD_GET(PWM_PERIOD_MASK, con1); /* -- 2.6.4
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