[PATCH 1/4] mfd: exynos-lpass: Enable UART module support

From: Marek Szyprowski
Date: Fri Dec 14 2018 - 06:34:27 EST


From: Beomho Seo <beomho.seo@xxxxxxxxxxx>

This patch enables support for UART module in Exynos Audio SubSystem.
There are boards (for example TM2), which use it for communication with
bluetooth chip.

Signed-off-by: Beomho Seo <beomho.seo@xxxxxxxxxxx>
[mszyprow: rephrased commit message, added UART reset]
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
---
drivers/mfd/exynos-lpass.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c
index ca829f85672f..2713de989f05 100644
--- a/drivers/mfd/exynos-lpass.c
+++ b/drivers/mfd/exynos-lpass.c
@@ -82,11 +82,13 @@ static void exynos_lpass_enable(struct exynos_lpass *lpass)
LPASS_INTR_SFR | LPASS_INTR_DMA | LPASS_INTR_I2S);

regmap_write(lpass->top, SFR_LPASS_INTR_CPU_MASK,
- LPASS_INTR_SFR | LPASS_INTR_DMA | LPASS_INTR_I2S);
+ LPASS_INTR_SFR | LPASS_INTR_DMA | LPASS_INTR_I2S |
+ LPASS_INTR_UART);

exynos_lpass_core_sw_reset(lpass, LPASS_I2S_SW_RESET);
exynos_lpass_core_sw_reset(lpass, LPASS_DMA_SW_RESET);
exynos_lpass_core_sw_reset(lpass, LPASS_MEM_SW_RESET);
+ exynos_lpass_core_sw_reset(lpass, LPASS_UART_SW_RESET);
}

static void exynos_lpass_disable(struct exynos_lpass *lpass)
--
2.17.1