pwm: Add MediaTek MT8183 display PWM driver support (a87b4061) · Commits · 戴 / test

Use the mtk_pwm_data struction to define different registers and add MT8183 specific register operations, such as MT8183 doesn't have commit register, needs to disable double buffer before writing register, and needs to select commit mode and use PWM_PERIOD/PWM_HIGH_WIDTH. Signed-off-by:

Jitao Shi <jitao.shi@mediatek.com> Signed-off-by:

Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-mtk-disp.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -277,10 +277,21 @@ static const struct mtk_pwm_data mt8173_pwm_data = {
		.commit_mask = 0x1,
		};

		static const struct mtk_pwm_data mt8183_pwm_data = {
		.enable_mask = BIT(0),
		.con0 = 0x18,
		.con0_sel = 0x0,
		.con1 = 0x1c,
		.has_commit = false,
		.bls_debug = 0x80,
		.bls_debug_mask = 0x3,
		};

		static const struct of_device_id mtk_disp_pwm_of_match[] = {
		{ .compatible = "mediatek,mt2701-disp-pwm", .data = &mt2701_pwm_data},
		{ .compatible = "mediatek,mt6595-disp-pwm", .data = &mt8173_pwm_data},
		{ .compatible = "mediatek,mt8173-disp-pwm", .data = &mt8173_pwm_data},
		{ .compatible = "mediatek,mt8183-disp-pwm", .data = &mt8183_pwm_data},
		{ }
		};
		MODULE_DEVICE_TABLE(of, mtk_disp_pwm_of_match);

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