clocksource: samsung_pwm_timer: Get clock from device tree (a1fa6f50) · Commits · 戴 / test

When booting with device tree static clkdev aliases should not be used. This patch modifies the samsung_pwm_timer driver to use DT-based clock lookup when booting with device tree. Signed-off-by:

Tomasz Figa <t.figa@samsung.com> Signed-off-by:

Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by:

Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:

Mike Turquette <mturquette@linaro.org>

drivers/clocksource/samsung_pwm_timer.c

+8 −4

Original line number	Diff line number	Diff line
		@@ -349,10 +349,6 @@ static void __init samsung_clocksource_init(void)

		static void __init samsung_timer_resources(void)
		{
		pwm.timerclk = clk_get(NULL, "timers");
		if (IS_ERR(pwm.timerclk))
		panic("failed to get timers clock for timer");

		clk_prepare_enable(pwm.timerclk);

		pwm.tcnt_max = (1UL << pwm.variant.bits) - 1;
		@@ -397,6 +393,10 @@ void __init samsung_pwm_clocksource_init(void __iomem *base,
		memcpy(&pwm.variant, variant, sizeof(pwm.variant));
		memcpy(pwm.irq, irqs, SAMSUNG_PWM_NUM * sizeof(*irqs));

		pwm.timerclk = clk_get(NULL, "timers");
		if (IS_ERR(pwm.timerclk))
		panic("failed to get timers clock for timer");

		_samsung_pwm_clocksource_init();
		}

		@@ -437,6 +437,10 @@ static void __init samsung_pwm_alloc(struct device_node *np,
		return;
		}

		pwm.timerclk = of_clk_get_by_name(np, "timers");
		if (IS_ERR(pwm.timerclk))
		panic("failed to get timers clock for timer");

		_samsung_pwm_clocksource_init();
		}

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