From: Lee Jones <lee.jones@linaro.org>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: STEricsson_nomadik_linux@list.st.com,
linus.walleij@stericsson.com, arnd@arndb.de,
broonie@opensource.wolfsonmicro.com,
Lee Jones <lee.jones@linaro.org>,
alsa-devel@alsa-project.org
Subject: [PATCH 04/22] ASoC: Ux500: Move MSP pinctrl setup into the MSP driver
Date: Thu, 9 Aug 2012 16:47:30 +0100 [thread overview]
Message-ID: <1344527268-5964-5-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1344527268-5964-1-git-send-email-lee.jones@linaro.org>
In the initial submission of the MSP driver msp1 and msp3's associated
pinctrl mechanism was passed back to platform code using a plat_init()
call-back routine, but it has no place in platform code. The MSP driver
should set this up for the appropriate ports. Instead we use a use_pinctrl
identifier which is passed from platform_data/Device Tree which indicates
which ports should use pinctrl.
CC: alsa-devel@alsa-project.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/mach-ux500/board-mop500-msp.c | 75 +-------------------------------
arch/arm/mach-ux500/include/mach/msp.h | 2 -
sound/soc/ux500/ux500_msp_i2s.c | 75 +++++++++++++++++++++++++-------
sound/soc/ux500/ux500_msp_i2s.h | 2 -
4 files changed, 60 insertions(+), 94 deletions(-)
diff --git a/arch/arm/mach-ux500/board-mop500-msp.c b/arch/arm/mach-ux500/board-mop500-msp.c
index df15646..fc78d5d 100644
--- a/arch/arm/mach-ux500/board-mop500-msp.c
+++ b/arch/arm/mach-ux500/board-mop500-msp.c
@@ -23,53 +23,6 @@
#include "devices-db8500.h"
#include "pins-db8500.h"
-/* MSP1/3 Tx/Rx usage protection */
-static DEFINE_SPINLOCK(msp_rxtx_lock);
-
-/* Reference Count */
-static int msp_rxtx_ref;
-
-/* Pin modes */
-struct pinctrl *msp1_p;
-struct pinctrl_state *msp1_def;
-struct pinctrl_state *msp1_sleep;
-
-int msp13_i2s_init(void)
-{
- int retval = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&msp_rxtx_lock, flags);
- if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_def))) {
- retval = pinctrl_select_state(msp1_p, msp1_def);
- if (retval)
- pr_err("could not set MSP1 defstate\n");
- }
- if (!retval)
- msp_rxtx_ref++;
- spin_unlock_irqrestore(&msp_rxtx_lock, flags);
-
- return retval;
-}
-
-int msp13_i2s_exit(void)
-{
- int retval = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&msp_rxtx_lock, flags);
- WARN_ON(!msp_rxtx_ref);
- msp_rxtx_ref--;
- if (msp_rxtx_ref == 0 && !(IS_ERR(msp1_p) || IS_ERR(msp1_sleep))) {
- retval = pinctrl_select_state(msp1_p, msp1_sleep);
- if (retval)
- pr_err("could not set MSP1 sleepstate\n");
- }
- spin_unlock_irqrestore(&msp_rxtx_lock, flags);
-
- return retval;
-}
-
static struct stedma40_chan_cfg msp0_dma_rx = {
.high_priority = true,
.dir = STEDMA40_PERIPH_TO_MEM,
@@ -132,8 +85,6 @@ static struct msp_i2s_platform_data msp1_platform_data = {
.id = MSP_I2S_1,
.msp_i2s_dma_rx = NULL,
.msp_i2s_dma_tx = &msp1_dma_tx,
- .msp_i2s_init = msp13_i2s_init,
- .msp_i2s_exit = msp13_i2s_exit,
};
static struct stedma40_chan_cfg msp2_dma_rx = {
@@ -219,47 +170,23 @@ static struct msp_i2s_platform_data msp3_platform_data = {
.id = MSP_I2S_3,
.msp_i2s_dma_rx = &msp1_dma_rx,
.msp_i2s_dma_tx = NULL,
- .msp_i2s_init = msp13_i2s_init,
- .msp_i2s_exit = msp13_i2s_exit,
};
int mop500_msp_init(struct device *parent)
{
- struct platform_device *msp1;
-
pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
platform_device_register(&snd_soc_mop500);
pr_info("Initialize MSP I2S-devices.\n");
db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
&msp0_platform_data);
- msp1 = db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
+ db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
&msp1_platform_data);
db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
&msp2_platform_data);
db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
&msp3_platform_data);
- /* Get the pinctrl handle for MSP1 */
- if (msp1) {
- msp1_p = pinctrl_get(&msp1->dev);
- if (IS_ERR(msp1_p))
- dev_err(&msp1->dev, "could not get MSP1 pinctrl\n");
- else {
- msp1_def = pinctrl_lookup_state(msp1_p,
- PINCTRL_STATE_DEFAULT);
- if (IS_ERR(msp1_def)) {
- dev_err(&msp1->dev,
- "could not get MSP1 defstate\n");
- }
- msp1_sleep = pinctrl_lookup_state(msp1_p,
- PINCTRL_STATE_SLEEP);
- if (IS_ERR(msp1_sleep))
- dev_err(&msp1->dev,
- "could not get MSP1 idlestate\n");
- }
- }
-
pr_info("%s: Register platform-device 'ux500-pcm'\n", __func__);
platform_device_register(&ux500_pcm);
diff --git a/arch/arm/mach-ux500/include/mach/msp.h b/arch/arm/mach-ux500/include/mach/msp.h
index 798be19..3cc7142 100644
--- a/arch/arm/mach-ux500/include/mach/msp.h
+++ b/arch/arm/mach-ux500/include/mach/msp.h
@@ -22,8 +22,6 @@ struct msp_i2s_platform_data {
enum msp_i2s_id id;
struct stedma40_chan_cfg *msp_i2s_dma_rx;
struct stedma40_chan_cfg *msp_i2s_dma_tx;
- int (*msp_i2s_init) (void);
- int (*msp_i2s_exit) (void);
};
#endif
diff --git a/sound/soc/ux500/ux500_msp_i2s.c b/sound/soc/ux500/ux500_msp_i2s.c
index 36be11e..2cbfc54 100644
--- a/sound/soc/ux500/ux500_msp_i2s.c
+++ b/sound/soc/ux500/ux500_msp_i2s.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/delay.h>
#include <linux/slab.h>
@@ -25,6 +26,17 @@
#include "ux500_msp_i2s.h"
+/* MSP1/3 Tx/Rx usage protection */
+static DEFINE_SPINLOCK(msp_rxtx_lock);
+
+/* Pin modes */
+struct pinctrl *pinctrl_p;
+struct pinctrl_state *pinctrl_def;
+struct pinctrl_state *pinctrl_sleep;
+
+/* Reference Count */
+int pinctrl_rxtx_ref;
+
/* Protocol desciptors */
static const struct msp_protdesc prot_descs[] = {
{ /* I2S */
@@ -352,17 +364,23 @@ static int configure_multichannel(struct ux500_msp *msp,
static int enable_msp(struct ux500_msp *msp, struct ux500_msp_config *config)
{
- int status = 0;
+ int status = 0, retval = 0;
u32 reg_val_DMACR, reg_val_GCR;
+ unsigned long flags;
/* Check msp state whether in RUN or CONFIGURED Mode */
- if ((msp->msp_state == MSP_STATE_IDLE) && (msp->plat_init)) {
- status = msp->plat_init();
- if (status) {
- dev_err(msp->dev, "%s: ERROR: Failed to init MSP (%d)!\n",
- __func__, status);
- return status;
+ if (msp->msp_state == MSP_STATE_IDLE) {
+ spin_lock_irqsave(&msp_rxtx_lock, flags);
+ if (pinctrl_rxtx_ref == 0 &&
+ !(IS_ERR(pinctrl_p) || IS_ERR(pinctrl_def))) {
+ retval = pinctrl_select_state(pinctrl_p,
+ pinctrl_def);
+ if (retval)
+ pr_err("could not set MSP defstate\n");
}
+ if (!retval)
+ pinctrl_rxtx_ref++;
+ spin_unlock_irqrestore(&msp_rxtx_lock, flags);
}
/* Configure msp with protocol dependent settings */
@@ -620,7 +638,8 @@ int ux500_msp_i2s_trigger(struct ux500_msp *msp, int cmd, int direction)
int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir)
{
- int status = 0;
+ int status = 0, retval = 0;
+ unsigned long flags;
dev_dbg(msp->dev, "%s: Enter (dir = 0x%01x).\n", __func__, dir);
@@ -631,12 +650,19 @@ int ux500_msp_i2s_close(struct ux500_msp *msp, unsigned int dir)
writel((readl(msp->registers + MSP_GCR) &
(~(FRAME_GEN_ENABLE | SRG_ENABLE))),
msp->registers + MSP_GCR);
- if (msp->plat_exit)
- status = msp->plat_exit();
- if (status)
- dev_warn(msp->dev,
- "%s: WARN: ux500_msp_i2s_exit failed (%d)!\n",
- __func__, status);
+
+ spin_lock_irqsave(&msp_rxtx_lock, flags);
+ WARN_ON(!pinctrl_rxtx_ref);
+ pinctrl_rxtx_ref--;
+ if (pinctrl_rxtx_ref == 0 &&
+ !(IS_ERR(pinctrl_p) || IS_ERR(pinctrl_sleep))) {
+ retval = pinctrl_select_state(pinctrl_p,
+ pinctrl_sleep);
+ if (retval)
+ pr_err("could not set MSP sleepstate\n");
+ }
+ spin_unlock_irqrestore(&msp_rxtx_lock, flags);
+
writel(0, msp->registers + MSP_GCR);
writel(0, msp->registers + MSP_TCF);
writel(0, msp->registers + MSP_RCF);
@@ -678,8 +704,6 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev,
msp->id = platform_data->id;
msp->dev = &pdev->dev;
- msp->plat_init = platform_data->msp_i2s_init;
- msp->plat_exit = platform_data->msp_i2s_exit;
msp->dma_cfg_rx = platform_data->msp_i2s_dma_rx;
msp->dma_cfg_tx = platform_data->msp_i2s_dma_tx;
@@ -717,6 +741,25 @@ int ux500_msp_i2s_init_msp(struct platform_device *pdev,
dev_dbg(&pdev->dev, "I2S device-name: '%s'\n", i2s_cont->name);
msp->i2s_cont = i2s_cont;
+ pinctrl_p = pinctrl_get(msp->dev);
+ if (IS_ERR(pinctrl_p))
+ dev_err(&pdev->dev, "could not get MSP pinctrl\n");
+ else {
+ pinctrl_def = pinctrl_lookup_state(pinctrl_p,
+ PINCTRL_STATE_DEFAULT);
+ if (IS_ERR(pinctrl_def)) {
+ dev_err(&pdev->dev,
+ "could not get MSP defstate (%li)\n",
+ PTR_ERR(pinctrl_def));
+ }
+ pinctrl_sleep = pinctrl_lookup_state(pinctrl_p,
+ PINCTRL_STATE_SLEEP);
+ if (IS_ERR(pinctrl_sleep))
+ dev_err(&pdev->dev,
+ "could not get MSP idlestate (%li)\n",
+ PTR_ERR(pinctrl_def));
+ }
+
return 0;
err_i2s_cont:
diff --git a/sound/soc/ux500/ux500_msp_i2s.h b/sound/soc/ux500/ux500_msp_i2s.h
index 2d9136d..1ce336f 100644
--- a/sound/soc/ux500/ux500_msp_i2s.h
+++ b/sound/soc/ux500/ux500_msp_i2s.h
@@ -524,8 +524,6 @@ struct ux500_msp {
struct dma_chan *rx_pipeid;
enum msp_state msp_state;
int (*transfer) (struct ux500_msp *msp, struct i2s_message *message);
- int (*plat_init) (void);
- int (*plat_exit) (void);
struct timer_list notify_timer;
int def_elem_len;
unsigned int dir_busy;
--
1.7.9.5
next prev parent reply other threads:[~2012-08-09 15:53 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 15:47 [PATCH 00/22] mop500 related Audio reorganisation and fixups Lee Jones
2012-08-09 15:47 ` [PATCH 01/22] ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' Lee Jones
2012-08-14 8:38 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 02/22] ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 03/22] ASoC: ab8500: Inform SoC Core that we have our own I/O arrangements Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-15 14:01 ` Mark Brown
2012-08-09 15:47 ` Lee Jones [this message]
2012-08-14 8:51 ` [PATCH 04/22] ASoC: Ux500: Move MSP pinctrl setup into the MSP driver Linus Walleij
2012-08-20 8:09 ` Lee Jones
2012-08-20 11:59 ` Lee Jones
2012-08-27 23:09 ` Linus Walleij
2012-08-30 13:18 ` Lee Jones
2012-08-09 15:47 ` [PATCH 05/22] ASoC: Ux500: Enable MOP500 driver for Device Tree Lee Jones
2012-08-14 8:52 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 06/22] ASoC: Ux500: Enable ux500 MSP " Lee Jones
2012-08-14 8:55 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 07/22] ASoC: Ux500: Initialise PCM from MSP probe rather than as a device Lee Jones
2012-08-14 11:08 ` Linus Walleij
2012-09-19 13:33 ` [RESENDING] " Lee Jones
2012-09-20 9:03 ` Ola Lilja
2012-09-20 12:49 ` Mark Brown
2012-09-20 12:52 ` Lee Jones
2012-11-22 14:05 ` Lee Jones
2012-11-23 1:58 ` Mark Brown
2012-11-23 9:12 ` Lee Jones
2012-11-23 10:09 ` Mark Brown
2012-08-09 15:47 ` [PATCH 08/22] ASoC: codecs: Enable AB8500 CODEC for Device Tree Lee Jones
2012-08-14 11:09 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-20 11:34 ` [PATCH 1/1] " Lee Jones
2012-08-20 14:36 ` Mark Brown
2012-08-21 11:51 ` Lee Jones
2012-08-21 12:39 ` Mark Brown
2012-08-21 12:58 ` Lee Jones
2012-08-21 13:40 ` Mark Brown
2012-08-09 15:47 ` [PATCH 09/22] Documentation: Define the MOP500 Audio Machine Driver Device Tree bindings Lee Jones
2012-08-09 15:47 ` [PATCH 10/22] Documentation: Define the MSP " Lee Jones
2012-08-09 15:47 ` [PATCH 11/22] ARM: ux500: Clean-up MSP platform code Lee Jones
2012-08-14 11:12 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 12/22] ARM: ux500: Add AB8500 CODEC node to DB8500 Device Tree Lee Jones
2012-08-20 14:34 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 13/22] ARM: ux500: Fork MSP platform registration for step-by-step DT enablement Lee Jones
2012-08-14 11:13 ` Linus Walleij
2012-08-20 8:06 ` Lee Jones
2012-08-27 23:07 ` Linus Walleij
2012-08-28 7:48 ` Lee Jones
2012-08-30 23:56 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 14/22] ARM: ux500: Pass MSP DMA platform data though AUXDATA Lee Jones
2012-08-14 11:14 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 15/22] ARM: ux500: Stop registering the MOP500 Audio driver from platform code Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 16/22] ARM: ux500: Stop registering the PCM " Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 17/22] ARM: ux500: Remove platform registration of MSP devices Lee Jones
2012-08-14 11:18 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 18/22] ARM: ux500: Rename MSP board file to something more meaningful Lee Jones
2012-08-14 11:20 ` Linus Walleij
2012-08-30 12:31 ` Lee Jones
2012-08-09 15:47 ` [PATCH 19/22] ARM: ux500: Rename db8500.dtsi to dbx5x0.dtsi to encompass the u9500, u8540 and u9540 Lee Jones
2012-08-14 11:22 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 20/22] ARM: ux500: Add nodes for the MSP into Device Tree Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 21/22] ARM: ux500: Add all encompassing sound node to the Snowball " Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 22/22] Documentation: Add the AB8500 CODEC device to the MFD AB8500 doc Lee Jones
2012-08-14 11:24 ` Linus Walleij
2012-08-09 18:50 ` [PATCH 00/22] mop500 related Audio reorganisation and fixups Mark Brown
2012-08-09 19:40 ` Lee Jones
2012-08-10 8:48 ` Linus Walleij
2012-08-10 9:37 ` Lee Jones
2012-08-14 11:34 ` Linus Walleij
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