From: Arnd Bergmann <arnd@kernel.org>
To: robert.jarzmik@free.fr, linux-arm-kernel@lists.infradead.org
Cc: Arnd Bergmann <arnd@arndb.de>, Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Philipp Zabel <philipp.zabel@gmail.com>,
Lubomir Rintel <lkundrak@v3.sk>,
Paul Parsons <lost.distance@yahoo.com>,
Tomas Cech <sleep_walker@suse.com>,
Sergey Lapin <slapin@ossfans.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Helge Deller <deller@gmx.de>, Mark Brown <broonie@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
linux-ide@vger.kernel.org, linux-clk@vger.kernel.org,
linux-pm@vger.kernel.org, linux-input@vger.kernel.org,
patches@opensource.cirrus.com, linux-leds@vger.kernel.org,
linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
linux-rtc@vger.kernel.org, linux-usb@vger.kernel.org,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
alsa-devel@alsa-project.org
Subject: [PATCH 33/48] ASoC: pxa: i2s: use normal MMIO accessors
Date: Tue, 19 Apr 2022 18:37:55 +0200 [thread overview]
Message-ID: <20220419163810.2118169-34-arnd@kernel.org> (raw)
In-Reply-To: <20220419163810.2118169-1-arnd@kernel.org>
From: Arnd Bergmann <arnd@arndb.de>
To avoid dereferencing hardwired constant pointers from a global header
file, change the driver to use devm_platform_ioremap_resource for getting
an __iomem pointer, and then using readl/writel on that.
Each pointer dereference gets changed by a search&replace, which leads
to a few overlong lines, but seems less risky than trying to clean up
the code at the same time.
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: alsa-devel@alsa-project.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
sound/soc/pxa/pxa2xx-i2s.c | 110 +++++++++++++++++++++----------------
1 file changed, 62 insertions(+), 48 deletions(-)
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 5164c60ba89f..746e6ec9198b 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -21,7 +21,6 @@
#include <sound/pxa2xx-lib.h>
#include <sound/dmaengine_pcm.h>
-#include <mach/pxa-regs.h>
#include <linux/platform_data/asoc-pxa.h>
#include "pxa2xx-i2s.h"
@@ -29,13 +28,13 @@
/*
* I2S Controller Register and Bit Definitions
*/
-#define SACR0 __REG(0x40400000) /* Global Control Register */
-#define SACR1 __REG(0x40400004) /* Serial Audio I 2 S/MSB-Justified Control Register */
-#define SASR0 __REG(0x4040000C) /* Serial Audio I 2 S/MSB-Justified Interface and FIFO Status Register */
-#define SAIMR __REG(0x40400014) /* Serial Audio Interrupt Mask Register */
-#define SAICR __REG(0x40400018) /* Serial Audio Interrupt Clear Register */
-#define SADIV __REG(0x40400060) /* Audio Clock Divider Register. */
-#define SADR __REG(0x40400080) /* Serial Audio Data Register (TX and RX FIFO access Register). */
+#define SACR0 (0x0000) /* Global Control Register */
+#define SACR1 (0x0004) /* Serial Audio I 2 S/MSB-Justified Control Register */
+#define SASR0 (0x000C) /* Serial Audio I 2 S/MSB-Justified Interface and FIFO Status Register */
+#define SAIMR (0x0014) /* Serial Audio Interrupt Mask Register */
+#define SAICR (0x0018) /* Serial Audio Interrupt Clear Register */
+#define SADIV (0x0060) /* Audio Clock Divider Register. */
+#define SADR (0x0080) /* Serial Audio Data Register (TX and RX FIFO access Register). */
#define SACR0_RFTH(x) ((x) << 12) /* Rx FIFO Interrupt or DMA Trigger Threshold */
#define SACR0_TFTH(x) ((x) << 8) /* Tx FIFO Interrupt or DMA Trigger Threshold */
@@ -77,16 +76,15 @@ struct pxa_i2s_port {
static struct pxa_i2s_port pxa_i2s;
static struct clk *clk_i2s;
static int clk_ena = 0;
+static void __iomem *i2s_reg_base;
static struct snd_dmaengine_dai_dma_data pxa2xx_i2s_pcm_stereo_out = {
- .addr = __PREG(SADR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
.chan_name = "tx",
.maxburst = 32,
};
static struct snd_dmaengine_dai_dma_data pxa2xx_i2s_pcm_stereo_in = {
- .addr = __PREG(SADR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
.chan_name = "rx",
.maxburst = 32,
@@ -102,7 +100,7 @@ static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream,
return PTR_ERR(clk_i2s);
if (!snd_soc_dai_active(cpu_dai))
- SACR0 = 0;
+ writel(0, i2s_reg_base + SACR0);
return 0;
}
@@ -114,7 +112,7 @@ static int pxa_i2s_wait(void)
/* flush the Rx FIFO */
for (i = 0; i < 16; i++)
- SADR;
+ readl(i2s_reg_base + SADR);
return 0;
}
@@ -174,39 +172,39 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
/* is port used by another stream */
if (!(SACR0 & SACR0_ENB)) {
- SACR0 = 0;
+ writel(0, i2s_reg_base + SACR0);
if (pxa_i2s.master)
- SACR0 |= SACR0_BCKD;
+ writel(readl(i2s_reg_base + SACR0) | (SACR0_BCKD), i2s_reg_base + SACR0);
- SACR0 |= SACR0_RFTH(14) | SACR0_TFTH(1);
- SACR1 |= pxa_i2s.fmt;
+ writel(readl(i2s_reg_base + SACR0) | (SACR0_RFTH(14) | SACR0_TFTH(1)), i2s_reg_base + SACR0);
+ writel(readl(i2s_reg_base + SACR1) | (pxa_i2s.fmt), i2s_reg_base + SACR1);
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- SAIMR |= SAIMR_TFS;
+ writel(readl(i2s_reg_base + SAIMR) | (SAIMR_TFS), i2s_reg_base + SAIMR);
else
- SAIMR |= SAIMR_RFS;
+ writel(readl(i2s_reg_base + SAIMR) | (SAIMR_RFS), i2s_reg_base + SAIMR);
switch (params_rate(params)) {
case 8000:
- SADIV = 0x48;
+ writel(0x48, i2s_reg_base + SADIV);
break;
case 11025:
- SADIV = 0x34;
+ writel(0x34, i2s_reg_base + SADIV);
break;
case 16000:
- SADIV = 0x24;
+ writel(0x24, i2s_reg_base + SADIV);
break;
case 22050:
- SADIV = 0x1a;
+ writel(0x1a, i2s_reg_base + SADIV);
break;
case 44100:
- SADIV = 0xd;
+ writel(0xd, i2s_reg_base + SADIV);
break;
case 48000:
- SADIV = 0xc;
+ writel(0xc, i2s_reg_base + SADIV);
break;
case 96000: /* not in manual and possibly slightly inaccurate */
- SADIV = 0x6;
+ writel(0x6, i2s_reg_base + SADIV);
break;
}
@@ -221,10 +219,10 @@ static int pxa2xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- SACR1 &= ~SACR1_DRPL;
+ writel(readl(i2s_reg_base + SACR1) & (~SACR1_DRPL), i2s_reg_base + SACR1);
else
- SACR1 &= ~SACR1_DREC;
- SACR0 |= SACR0_ENB;
+ writel(readl(i2s_reg_base + SACR1) & (~SACR1_DREC), i2s_reg_base + SACR1);
+ writel(readl(i2s_reg_base + SACR0) | (SACR0_ENB), i2s_reg_base + SACR0);
break;
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
@@ -243,15 +241,15 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- SACR1 |= SACR1_DRPL;
- SAIMR &= ~SAIMR_TFS;
+ writel(readl(i2s_reg_base + SACR1) | (SACR1_DRPL), i2s_reg_base + SACR1);
+ writel(readl(i2s_reg_base + SAIMR) & (~SAIMR_TFS), i2s_reg_base + SAIMR);
} else {
- SACR1 |= SACR1_DREC;
- SAIMR &= ~SAIMR_RFS;
+ writel(readl(i2s_reg_base + SACR1) | (SACR1_DREC), i2s_reg_base + SACR1);
+ writel(readl(i2s_reg_base + SAIMR) & (~SAIMR_RFS), i2s_reg_base + SAIMR);
}
- if ((SACR1 & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) {
- SACR0 &= ~SACR0_ENB;
+ if ((readl(i2s_reg_base + SACR1) & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) {
+ writel(readl(i2s_reg_base + SACR0) & (~SACR0_ENB), i2s_reg_base + SACR0);
pxa_i2s_wait();
if (clk_ena) {
clk_disable_unprepare(clk_i2s);
@@ -264,13 +262,13 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
static int pxa2xx_soc_pcm_suspend(struct snd_soc_component *component)
{
/* store registers */
- pxa_i2s.sacr0 = SACR0;
- pxa_i2s.sacr1 = SACR1;
- pxa_i2s.saimr = SAIMR;
- pxa_i2s.sadiv = SADIV;
+ pxa_i2s.sacr0 = readl(i2s_reg_base + SACR0);
+ pxa_i2s.sacr1 = readl(i2s_reg_base + SACR1);
+ pxa_i2s.saimr = readl(i2s_reg_base + SAIMR);
+ pxa_i2s.sadiv = readl(i2s_reg_base + SADIV);
/* deactivate link */
- SACR0 &= ~SACR0_ENB;
+ writel(readl(i2s_reg_base + SACR0) & (~SACR0_ENB), i2s_reg_base + SACR0);
pxa_i2s_wait();
return 0;
}
@@ -279,12 +277,12 @@ static int pxa2xx_soc_pcm_resume(struct snd_soc_component *component)
{
pxa_i2s_wait();
- SACR0 = pxa_i2s.sacr0 & ~SACR0_ENB;
- SACR1 = pxa_i2s.sacr1;
- SAIMR = pxa_i2s.saimr;
- SADIV = pxa_i2s.sadiv;
+ writel(pxa_i2s.sacr0 & ~SACR0_ENB, i2s_reg_base + SACR0);
+ writel(pxa_i2s.sacr1, i2s_reg_base + SACR1);
+ writel(pxa_i2s.saimr, i2s_reg_base + SAIMR);
+ writel(pxa_i2s.sadiv, i2s_reg_base + SADIV);
- SACR0 = pxa_i2s.sacr0;
+ writel(pxa_i2s.sacr0, i2s_reg_base + SACR0);
return 0;
}
@@ -306,12 +304,12 @@ static int pxa2xx_i2s_probe(struct snd_soc_dai *dai)
* the SACR0[RST] bit must also be set and cleared to reset all
* I2S controller registers.
*/
- SACR0 = SACR0_RST;
- SACR0 = 0;
+ writel(SACR0_RST, i2s_reg_base + SACR0);
+ writel(0, i2s_reg_base + SACR0);
/* Make sure RPL and REC are disabled */
- SACR1 = SACR1_DRPL | SACR1_DREC;
+ writel(SACR1_DRPL | SACR1_DREC, i2s_reg_base + SACR1);
/* Along with FIFO servicing */
- SAIMR &= ~(SAIMR_RFS | SAIMR_TFS);
+ writel(readl(i2s_reg_base + SAIMR) & (~(SAIMR_RFS | SAIMR_TFS)), i2s_reg_base + SAIMR);
snd_soc_dai_init_dma_data(dai, &pxa2xx_i2s_pcm_stereo_out,
&pxa2xx_i2s_pcm_stereo_in);
@@ -371,6 +369,22 @@ static const struct snd_soc_component_driver pxa_i2s_component = {
static int pxa2xx_i2s_drv_probe(struct platform_device *pdev)
{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ if (!res) {
+ dev_err(&pdev->dev, "missing MMIO resource\n");
+ return -ENXIO;
+ }
+
+ i2s_reg_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(i2s_reg_base)) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ return PTR_ERR(i2s_reg_base);
+ }
+
+ pxa2xx_i2s_pcm_stereo_out.addr = res->start + SADR;
+ pxa2xx_i2s_pcm_stereo_in.addr = res->start + SADR;
+
return devm_snd_soc_register_component(&pdev->dev, &pxa_i2s_component,
&pxa_i2s_dai, 1);
}
--
2.29.2
next prev parent reply other threads:[~2022-04-19 16:47 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 16:37 [PATCH v2 00/48] ARM: PXA multiplatform support Arnd Bergmann
2022-04-19 16:37 ` [PATCH 01/48] ARM: pxa: split mach/generic.h Arnd Bergmann
2022-04-19 16:37 ` [PATCH 02/48] ARM: pxa: make mainstone.h private Arnd Bergmann
2022-04-19 16:37 ` [PATCH 03/48] ARM: pxa: make mach/regs-uart.h private Arnd Bergmann
2022-04-19 16:37 ` [PATCH 04/48] ARM: pxa: remove mach/dma.h Arnd Bergmann
2022-04-19 16:37 ` [PATCH 05/48] ARM: pxa: split up mach/hardware.h Arnd Bergmann
2022-04-19 16:37 ` [PATCH 06/48] ARM: pxa: stop using mach/bitfield.h Arnd Bergmann
2022-04-19 16:37 ` [PATCH 07/48] ARM: pxa: move mach/sound.h to linux/platform_data/ Arnd Bergmann
2022-04-19 16:37 ` [PATCH 08/48] ARM: pxa: move regs-lcd.h into driver Arnd Bergmann
2022-04-19 16:37 ` [PATCH 09/48] watchdog: sa1100: use platform device registration Arnd Bergmann
2022-04-19 19:19 ` Guenter Roeck
2022-04-19 16:37 ` [PATCH 10/48] ARM: pxa: pxa2xx-ac97-lib: use IRQ resource Arnd Bergmann
2022-04-19 16:37 ` [PATCH 11/48] ARM: pxa: move pcmcia board data into mach-pxa Arnd Bergmann
2022-04-19 16:37 ` [PATCH 12/48] ARM: pxa: make addr-map.h header local Arnd Bergmann
2022-04-19 16:37 ` [PATCH 13/48] ARM: pxa: use pdev resource for palmld mmio Arnd Bergmann
2022-04-19 23:55 ` Damien Le Moal
2022-04-19 16:37 ` [PATCH 14/48] ARM: pxa: maybe fix gpio lookup tables Arnd Bergmann
2022-04-19 16:37 ` [PATCH 15/48] ARM: pxa: tosa: use gpio descriptor for audio Arnd Bergmann
2022-05-01 21:34 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 16/48] ARM: pxa: poodle: use platform data for poodle asoc driver Arnd Bergmann
2022-04-19 16:37 ` [PATCH 17/48] ARM: pxa: corgi: use gpio descriptors for audio Arnd Bergmann
2022-05-01 21:35 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 18/48] ARM: pxa: hx4700: " Arnd Bergmann
2022-05-01 21:41 ` Linus Walleij
2022-05-02 7:07 ` Arnd Bergmann
2022-05-04 21:59 ` Linus Walleij
2022-05-05 6:04 ` Arnd Bergmann
2022-05-05 14:33 ` Linus Walleij
2022-05-05 14:39 ` Mark Brown
2022-05-05 14:59 ` Arnd Bergmann
2022-05-05 15:04 ` Mark Brown
2022-05-05 20:07 ` Arnd Bergmann
2022-04-19 16:37 ` [PATCH 19/48] ARM: pxa: lubbock: pass udc irqs as resource Arnd Bergmann
2022-04-19 16:37 ` [PATCH 20/48] ARM: pxa: spitz: use gpio descriptors for audio Arnd Bergmann
2022-05-01 21:42 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 21/48] ARM: pxa: eseries: use gpio lookup " Arnd Bergmann
2022-05-01 21:45 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 22/48] ARM: pxa: z2: use gpio lookup for audio device Arnd Bergmann
2022-05-01 21:45 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 23/48] ARM: pxa: magician: use platform driver for audio Arnd Bergmann
2022-05-01 21:46 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 24/48] ARM: pxa: mainstone-wm97xx: use gpio lookup table Arnd Bergmann
2022-05-01 21:48 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 25/48] ARM: pxa: zylonite: use gpio lookup instead mfp header Arnd Bergmann
2022-05-01 21:50 ` Linus Walleij
2022-04-19 16:37 ` [PATCH 26/48] input: touchscreen: mainstone: fix pxa2xx+pxa3xx configuration Arnd Bergmann
2022-04-19 16:37 ` [PATCH 27/48] input: touchscreen: mainstone: sync with zylonite driver Arnd Bergmann
2022-04-19 16:37 ` [PATCH 28/48] Input: touchscreen: use wrapper for pxa2xx ac97 registers Arnd Bergmann
2022-04-19 16:37 ` [PATCH 29/48] Input: wm97xx - switch to using threaded IRQ Arnd Bergmann
2022-04-19 16:37 ` [PATCH 30/48] Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Arnd Bergmann
2022-04-19 16:37 ` [PATCH 31/48] ASoC: pxa: use pdev resource for FIFO regs Arnd Bergmann
2022-04-19 16:37 ` [PATCH 32/48] ASoC: pxa: ac97: use normal MMIO accessors Arnd Bergmann
2022-04-19 16:37 ` Arnd Bergmann [this message]
2022-04-19 16:37 ` [PATCH 34/48] ARM: pxa: pcmcia: move smemc configuration back to arch Arnd Bergmann
2022-04-19 16:37 ` [PATCH 35/48] ARM: pxa: remove get_clk_frequency_khz() Arnd Bergmann
2022-04-19 16:37 ` [PATCH 36/48] cpufreq: pxa3: move clk register access to clk driver Arnd Bergmann
2022-04-19 16:37 ` [PATCH 37/48] ARM: pxa: move smemc register access from clk to platform Arnd Bergmann
2022-04-19 16:38 ` [PATCH 38/48] ARM: pxa: move clk register definitions to driver Arnd Bergmann
2022-04-19 16:38 ` [PATCH 39/48] power: tosa: simplify probe function Arnd Bergmann
2022-04-19 16:38 ` [PATCH 40/48] ARM: pxa: tosa: use gpio lookup for battery Arnd Bergmann
2022-04-20 13:43 ` Sebastian Reichel
2022-04-20 13:48 ` Arnd Bergmann
2022-05-07 12:37 ` Linus Walleij
2022-04-19 16:38 ` [PATCH 41/48] ARM: pxa: remove unused mach/bitfield.h Arnd Bergmann
2022-04-19 16:38 ` [PATCH 42/48] ARM: mmp: remove tavorevb board support Arnd Bergmann
2022-04-19 16:38 ` [PATCH 43/48] ARM: mmp: rename pxa_register_device Arnd Bergmann
2022-04-19 16:38 ` [PATCH 44/48] ARM: pxa: move plat-pxa to drivers/soc/ Arnd Bergmann
2022-04-19 16:38 ` [PATCH 45/48] ARM: PXA: fix multi-cpu build of xsc3 Arnd Bergmann
2022-04-19 16:38 ` [PATCH 46/48] ARM: pxa: move mach/*.h to mach-pxa/ Arnd Bergmann
2022-04-19 16:38 ` [PATCH 47/48] ARM: pxa: remove support for MTD_XIP Arnd Bergmann
2022-04-19 16:38 ` [PATCH 48/48] ARM: pxa: convert to multiplatform Arnd Bergmann
2022-04-21 15:29 ` [PATCH v2 00/48] ARM: PXA multiplatform support Arnd Bergmann
2022-04-22 17:05 ` Guenter Roeck
2022-04-22 19:16 ` Arnd Bergmann
2022-04-22 20:55 ` Guenter Roeck
2022-04-22 22:04 ` Arnd Bergmann
2022-04-22 23:18 ` Guenter Roeck
2022-04-22 23:41 ` Guenter Roeck
2022-04-23 19:55 ` Arnd Bergmann
2022-04-24 2:09 ` Guenter Roeck
2022-04-24 8:52 ` Arnd Bergmann
2022-04-24 15:28 ` Guenter Roeck
2022-04-24 18:48 ` Arnd Bergmann
2022-04-28 13:44 ` Arnd Bergmann
2022-04-28 16:49 ` Guenter Roeck
2022-04-29 17:48 ` Guenter Roeck
2022-04-29 20:23 ` Guenter Roeck
2022-04-29 21:46 ` Arnd Bergmann
2022-04-29 23:09 ` Guenter Roeck
2022-04-30 8:04 ` Arnd Bergmann
2022-04-30 12:41 ` Guenter Roeck
2022-04-30 13:32 ` Arnd Bergmann
2022-04-30 14:23 ` Arnd Bergmann
2022-05-02 16:26 ` Guenter Roeck
2022-05-02 19:21 ` Arnd Bergmann
2022-05-02 20:35 ` Guenter Roeck
2022-05-02 21:03 ` Arnd Bergmann
2022-05-03 2:55 ` Guenter Roeck
2022-05-03 7:17 ` Arnd Bergmann
2022-05-03 14:04 ` Guenter Roeck
2022-05-03 14:29 ` Arnd Bergmann
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