diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0016-bcm2835-i2s-setup-clock-only-if-CPU-is-clock-master.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0016-bcm2835-i2s-setup-clock-only-if-CPU-is-clock-master.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0016-bcm2835-i2s-setup-clock-only-if-CPU-is-clock-master.patch b/target/linux/brcm2708/patches-4.4/0016-bcm2835-i2s-setup-clock-only-if-CPU-is-clock-master.patch deleted file mode 100644 index 995266a858..0000000000 --- a/target/linux/brcm2708/patches-4.4/0016-bcm2835-i2s-setup-clock-only-if-CPU-is-clock-master.patch +++ /dev/null @@ -1,54 +0,0 @@ -From 2165ae346e98922f21ffe6abad1f6d4226e445b1 Mon Sep 17 00:00:00 2001 -From: Matthias Reichl <hias@horus.com> -Date: Sun, 11 Oct 2015 15:25:51 +0200 -Subject: [PATCH] bcm2835-i2s: setup clock only if CPU is clock master - -Code ported from bcm2708-i2s driver in Raspberry Pi tree. - -RPi commit c14827ecdaa36607f6110f9ce8df96e698672191 ("bcm2708: Allow -option card devices to be configured via DT") - -Original work by Zoltan Szenczi, committed to RPi tree by -Phil Elwell. - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - sound/soc/bcm/bcm2835-i2s.c | 28 +++++++++++++++++++--------- - 1 file changed, 19 insertions(+), 9 deletions(-) - ---- a/sound/soc/bcm/bcm2835-i2s.c -+++ b/sound/soc/bcm/bcm2835-i2s.c -@@ -411,15 +411,25 @@ static int bcm2835_i2s_hw_params(struct - divf = dividend & BCM2835_CLK_DIVF_MASK; - } - -- /* Set clock divider */ -- regmap_write(dev->clk_regmap, BCM2835_CLK_PCMDIV_REG, BCM2835_CLK_PASSWD -- | BCM2835_CLK_DIVI(divi) -- | BCM2835_CLK_DIVF(divf)); -+ /* Clock should only be set up here if CPU is clock master */ -+ switch (dev->fmt & SND_SOC_DAIFMT_MASTER_MASK) { -+ case SND_SOC_DAIFMT_CBS_CFS: -+ case SND_SOC_DAIFMT_CBS_CFM: -+ /* Set clock divider */ -+ regmap_write(dev->clk_regmap, BCM2835_CLK_PCMDIV_REG, -+ BCM2835_CLK_PASSWD -+ | BCM2835_CLK_DIVI(divi) -+ | BCM2835_CLK_DIVF(divf)); - -- /* Setup clock, but don't start it yet */ -- regmap_write(dev->clk_regmap, BCM2835_CLK_PCMCTL_REG, BCM2835_CLK_PASSWD -- | BCM2835_CLK_MASH(mash) -- | BCM2835_CLK_SRC(clk_src)); -+ /* Setup clock, but don't start it yet */ -+ regmap_write(dev->clk_regmap, BCM2835_CLK_PCMCTL_REG, -+ BCM2835_CLK_PASSWD -+ | BCM2835_CLK_MASH(mash) -+ | BCM2835_CLK_SRC(clk_src)); -+ break; -+ default: -+ break; -+ } - - /* Setup the frame format */ - format = BCM2835_I2S_CHEN; |