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media: mtk-cir: lower de-glitch counter for rc-mm protocol 

The rc-mm protocol can't be decoded by the mtk-cir since the de-glitch
filter removes pulses/spaces shorter than 294 microseconds.

Tested on a BananaPi R2.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Sean Young 2019-07-12 18:47:00 -04:00 committed by Mauro Carvalho Chehab
parent a81431e7d1
commit 5dd4b89dc0
1 changed files with 8 additions and 0 deletions
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8
drivers/media/rc/mtk-cir.c
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@ -35,6 +35,11 @@
/* Fields containing pulse width data */
#define MTK_WIDTH_MASK (GENMASK(7, 0))
/* IR threshold */
#define MTK_IRTHD 0x14
#define MTK_DG_CNT_MASK (GENMASK(12, 8))
#define MTK_DG_CNT(x) ((x) << 8)
/* Bit to enable interrupt */
#define MTK_IRINT_EN BIT(0)
@ -398,6 +403,9 @@ static int mtk_ir_probe(struct platform_device *pdev)
mtk_w32_mask(ir, val, ir->data->fields[MTK_HW_PERIOD].mask,
ir->data->fields[MTK_HW_PERIOD].reg);
/* Set de-glitch counter */
mtk_w32_mask(ir, MTK_DG_CNT(1), MTK_DG_CNT_MASK, MTK_IRTHD);
/* Enable IR and PWM */
val = mtk_r32(ir, MTK_CONFIG_HIGH_REG);
val |= MTK_OK_COUNT(ir->data->ok_count) | MTK_PWM_EN | MTK_IR_EN;