[PATCH] pwm: mediatek: always use bus clock for PWM on MT7622

[AngeloGioacchino Del Regno]

Il 26/10/22 02:56, Daniel Golle ha scritto:
> According to MT7622 Reference Manual for Development Board v1.0 the PWM
> unit found in the MT7622 SoC also comes with the PWM_CK_26M_SEL register
> at offset 0x210 just like other modern MediaTek ARM64 SoCs.
> And also MT7622 sets that register to 0x00000001 on reset which is
> described as 'Select 26M fix CLK as BCLK' in the datasheet.
> Hence set has_ck_26m_sel to true also for MT7622 which results in the
> driver writing 0 to the PWM_CK_26M_SEL register which is described as
> 'Select bus CLK as BCLK'.
> 
> Fixes: 0c0ead76235db0 ("pwm: mediatek: Always use bus clock")
> Signed-off-by: Daniel Golle <daniel at makrotopia.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>