From: Nicolin Chen <nicoleotsuka@gmail.com>
To: broonie@kernel.org, timur@tabi.org
Cc: caleb@crome.org, mail@maciej.szmigiero.name,
fabio.estevam@nxp.com, alsa-devel@alsa-project.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
lgirdwood@gmail.com, arnaud.mouiche@invoxia.com, lukma@denx.de,
kernel@pengutronix.de
Subject: [PATCH v6 12/17] ASoC: fsl_ssi: Move one-time configurations to probe()
Date: Mon, 12 Feb 2018 14:03:20 -0800 [thread overview]
Message-ID: <1518473005-14090-13-git-send-email-nicoleotsuka@gmail.com> (raw)
In-Reply-To: <1518473005-14090-1-git-send-email-nicoleotsuka@gmail.com>
The probe() could handle some one-time configurations since
they will not be changed once being configured.
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Tested-by: Caleb Crome <caleb@crome.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
---
sound/soc/fsl/fsl_ssi.c | 39 ++++++++++++++++++++++++++-------------
1 file changed, 26 insertions(+), 13 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 7e15b30..36f3d51 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -865,7 +865,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev,
{
struct regmap *regs = ssi->regs;
u32 strcr = 0, stcr, srcr, scr, mask;
- u8 wm;
ssi->dai_fmt = fmt;
@@ -874,8 +873,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev,
return -EINVAL;
}
- fsl_ssi_setup_regvals(ssi);
-
regmap_read(regs, REG_SSI_SCR, &scr);
scr &= ~(SSI_SCR_SYN | SSI_SCR_I2S_MODE_MASK);
/* Synchronize frame sync clock for TE to avoid data slipping */
@@ -990,16 +987,6 @@ static int _fsl_ssi_set_dai_fmt(struct device *dev,
regmap_write(regs, REG_SSI_SRCR, srcr);
regmap_write(regs, REG_SSI_SCR, scr);
- wm = ssi->fifo_watermark;
-
- regmap_write(regs, REG_SSI_SFCSR,
- SSI_SFCSR_TFWM0(wm) | SSI_SFCSR_RFWM0(wm) |
- SSI_SFCSR_TFWM1(wm) | SSI_SFCSR_RFWM1(wm));
-
- if (ssi->use_dual_fifo)
- regmap_update_bits(regs, REG_SSI_SCR,
- SSI_SCR_TCH_EN, SSI_SCR_TCH_EN);
-
if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_AC97)
fsl_ssi_setup_ac97(ssi);
@@ -1249,6 +1236,29 @@ static struct snd_ac97_bus_ops fsl_ssi_ac97_ops = {
};
/**
+ * Initialize SSI registers
+ */
+static int fsl_ssi_hw_init(struct fsl_ssi *ssi)
+{
+ u32 wm = ssi->fifo_watermark;
+
+ /* Initialize regvals */
+ fsl_ssi_setup_regvals(ssi);
+
+ /* Set watermarks */
+ regmap_write(ssi->regs, REG_SSI_SFCSR,
+ SSI_SFCSR_TFWM0(wm) | SSI_SFCSR_RFWM0(wm) |
+ SSI_SFCSR_TFWM1(wm) | SSI_SFCSR_RFWM1(wm));
+
+ /* Enable Dual FIFO mode */
+ if (ssi->use_dual_fifo)
+ regmap_update_bits(ssi->regs, REG_SSI_SCR,
+ SSI_SCR_TCH_EN, SSI_SCR_TCH_EN);
+
+ return 0;
+}
+
+/**
* Make every character in a string lower-case
*/
static void make_lowercase(char *s)
@@ -1533,6 +1543,9 @@ static int fsl_ssi_probe(struct platform_device *pdev)
if (ssi->dai_fmt)
_fsl_ssi_set_dai_fmt(dev, ssi, ssi->dai_fmt);
+ /* Initially configures SSI registers */
+ fsl_ssi_hw_init(ssi);
+
if (fsl_ssi_is_ac97(ssi)) {
u32 ssi_idx;
--
2.1.4
next prev parent reply other threads:[~2018-02-12 22:02 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-12 22:03 [PATCH v6 00/17] ASoC: fsl_ssi: Clean up - program flow level Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 01/17] ASoC: fsl_ssi: Redefine RX and TX macros Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 02/17] ASoC: fsl_ssi: Keep ssi->i2s_net updated Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 03/17] ASoC: fsl_ssi: Clean up set_dai_tdm_slot() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 04/17] ASoC: fsl_ssi: Maintain a mask of active streams Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 05/17] ASoC: fsl_ssi: Rename fsl_ssi_disable_val macro Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 06/17] ASoC: fsl_ssi: Clear FIFO directly in fsl_ssi_config() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 07/17] ASoC: fsl_ssi: Clean up helper functions of trigger() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 08/17] ASoC: fsl_ssi: Add DAIFMT define for AC97 Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 09/17] ASoC: fsl_ssi: Clean up fsl_ssi_setup_regvals() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 10/17] ASoC: fsl_ssi: Set xFEN0 and xFEN1 together Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 11/17] ASoC: fsl_ssi: Use snd_soc_init_dma_data instead Nicolin Chen
2018-02-12 22:03 ` Nicolin Chen [this message]
2018-02-12 22:03 ` [PATCH v6 13/17] ASoC: fsl_ssi: Setup AC97 in fsl_ssi_hw_init() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 14/17] ASoC: fsl_ssi: Clean up _fsl_ssi_set_dai_fmt() Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 15/17] ASoC: fsl_ssi: Add bool synchronous to mark synchronous mode Nicolin Chen
2018-02-12 22:03 ` [PATCH v6 16/17] ASoC: fsl_ssi: Move DT related code to a separate probe() Nicolin Chen
2018-02-22 13:16 ` Applied "ASoC: fsl_ssi: Move DT related code to a separate probe()" to the asoc tree Mark Brown
2018-02-12 22:03 ` [PATCH v6 17/17] ASoC: fsl_ssi: Use ssi->streams instead of reading register Nicolin Chen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1518473005-14090-13-git-send-email-nicoleotsuka@gmail.com \
--to=nicoleotsuka@gmail.com \
--cc=alsa-devel@alsa-project.org \
--cc=arnaud.mouiche@invoxia.com \
--cc=broonie@kernel.org \
--cc=caleb@crome.org \
--cc=fabio.estevam@nxp.com \
--cc=kernel@pengutronix.de \
--cc=lgirdwood@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=lukma@denx.de \
--cc=mail@maciej.szmigiero.name \
--cc=timur@tabi.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).