* [PATCH V3 01/19] mmc: mmci: Convert to the mmc gpio API
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 02/19] mmc: mmci: Convert to devm functions Ulf Hansson
` (18 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
To avoid duplication of code while handling card detect and write
protect GPIO pins/irqs, let's convert to use the mmc gpio API.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 97 ++++++++---------------------------------------
drivers/mmc/host/mmci.h | 3 --
2 files changed, 15 insertions(+), 85 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 771c60a..b0b81ac 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -23,6 +23,7 @@
#include <linux/mmc/pm.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
+#include <linux/mmc/slot-gpio.h>
#include <linux/amba/bus.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
@@ -1326,35 +1327,18 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
pm_runtime_put_autosuspend(mmc_dev(mmc));
}
-static int mmci_get_ro(struct mmc_host *mmc)
-{
- struct mmci_host *host = mmc_priv(mmc);
-
- if (host->gpio_wp == -ENOSYS)
- return -ENOSYS;
-
- return gpio_get_value_cansleep(host->gpio_wp);
-}
-
static int mmci_get_cd(struct mmc_host *mmc)
{
struct mmci_host *host = mmc_priv(mmc);
struct mmci_platform_data *plat = host->plat;
- unsigned int status;
+ unsigned int status = mmc_gpio_get_cd(mmc);
- if (host->gpio_cd == -ENOSYS) {
+ if (status == -ENOSYS) {
if (!plat->status)
return 1; /* Assume always present */
status = plat->status(mmc_dev(host->mmc));
- } else
- status = !!gpio_get_value_cansleep(host->gpio_cd)
- ^ plat->cd_invert;
-
- /*
- * Use positive logic throughout - status is zero for no card,
- * non-zero for card inserted.
- */
+ }
return status;
}
@@ -1391,21 +1375,12 @@ static int mmci_sig_volt_switch(struct mmc_host *mmc, struct mmc_ios *ios)
return ret;
}
-static irqreturn_t mmci_cd_irq(int irq, void *dev_id)
-{
- struct mmci_host *host = dev_id;
-
- mmc_detect_change(host->mmc, msecs_to_jiffies(500));
-
- return IRQ_HANDLED;
-}
-
static struct mmc_host_ops mmci_ops = {
.request = mmci_request,
.pre_req = mmci_pre_request,
.post_req = mmci_post_request,
.set_ios = mmci_set_ios,
- .get_ro = mmci_get_ro,
+ .get_ro = mmc_gpio_get_ro,
.get_cd = mmci_get_cd,
.start_signal_voltage_switch = mmci_sig_volt_switch,
};
@@ -1494,10 +1469,6 @@ static int mmci_probe(struct amba_device *dev,
host = mmc_priv(mmc);
host->mmc = mmc;
- host->gpio_wp = -ENOSYS;
- host->gpio_cd = -ENOSYS;
- host->gpio_cd_irq = -1;
-
host->hw_designer = amba_manf(dev);
host->hw_revision = amba_rev(dev);
dev_dbg(mmc_dev(mmc), "designer ID = 0x%02x\n", host->hw_designer);
@@ -1568,6 +1539,9 @@ static int mmci_probe(struct amba_device *dev,
mmc->caps = plat->capabilities;
mmc->caps2 = plat->capabilities2;
+ if (!plat->cd_invert)
+ mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
+ mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
if (variant->busy_detect) {
mmci_ops.card_busy = mmci_card_busy;
@@ -1621,49 +1595,23 @@ static int mmci_probe(struct amba_device *dev,
goto err_gpio_cd;
}
if (gpio_is_valid(plat->gpio_cd)) {
- ret = gpio_request(plat->gpio_cd, DRIVER_NAME " (cd)");
- if (ret == 0)
- ret = gpio_direction_input(plat->gpio_cd);
- if (ret == 0)
- host->gpio_cd = plat->gpio_cd;
- else if (ret != -ENOSYS)
+ ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
+ if (ret)
goto err_gpio_cd;
-
- /*
- * A gpio pin that will detect cards when inserted and removed
- * will most likely want to trigger on the edges if it is
- * 0 when ejected and 1 when inserted (or mutatis mutandis
- * for the inverted case) so we request triggers on both
- * edges.
- */
- ret = request_any_context_irq(gpio_to_irq(plat->gpio_cd),
- mmci_cd_irq,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
- DRIVER_NAME " (cd)", host);
- if (ret >= 0)
- host->gpio_cd_irq = gpio_to_irq(plat->gpio_cd);
}
if (plat->gpio_wp == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto err_gpio_wp;
+ goto err_gpio_cd;
}
if (gpio_is_valid(plat->gpio_wp)) {
- ret = gpio_request(plat->gpio_wp, DRIVER_NAME " (wp)");
- if (ret == 0)
- ret = gpio_direction_input(plat->gpio_wp);
- if (ret == 0)
- host->gpio_wp = plat->gpio_wp;
- else if (ret != -ENOSYS)
- goto err_gpio_wp;
+ ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
+ if (ret)
+ goto err_gpio_cd;
}
- if ((host->plat->status || host->gpio_cd != -ENOSYS)
- && host->gpio_cd_irq < 0)
- mmc->caps |= MMC_CAP_NEEDS_POLL;
-
ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host);
if (ret)
- goto unmap;
+ goto err_gpio_cd;
if (!dev->irq[1])
host->singleirq = true;
@@ -1695,14 +1643,6 @@ static int mmci_probe(struct amba_device *dev,
irq0_free:
free_irq(dev->irq[0], host);
- unmap:
- if (host->gpio_wp != -ENOSYS)
- gpio_free(host->gpio_wp);
- err_gpio_wp:
- if (host->gpio_cd_irq >= 0)
- free_irq(host->gpio_cd_irq, host);
- if (host->gpio_cd != -ENOSYS)
- gpio_free(host->gpio_cd);
err_gpio_cd:
iounmap(host->base);
clk_disable:
@@ -1741,13 +1681,6 @@ static int mmci_remove(struct amba_device *dev)
if (!host->singleirq)
free_irq(dev->irq[1], host);
- if (host->gpio_wp != -ENOSYS)
- gpio_free(host->gpio_wp);
- if (host->gpio_cd_irq >= 0)
- free_irq(host->gpio_cd_irq, host);
- if (host->gpio_cd != -ENOSYS)
- gpio_free(host->gpio_cd);
-
iounmap(host->base);
clk_disable_unprepare(host->clk);
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 58b1b88..8fc5814 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -176,9 +176,6 @@ struct mmci_host {
struct mmc_data *data;
struct mmc_host *mmc;
struct clk *clk;
- int gpio_cd;
- int gpio_wp;
- int gpio_cd_irq;
bool singleirq;
spinlock_t lock;
--
1.7.9.5
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 02/19] mmc: mmci: Convert to devm functions
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-04-10 12:20 ` [PATCH V3 01/19] mmc: mmci: Convert to the mmc gpio API Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 03/19] mmc: mmci: Update DT documentation Ulf Hansson
` (17 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Converting to devm functions to simplify error handling in ->probe() and
to cleanup ->remove().
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
Changes in v3:
Convert to use devm_ioremap_resource(), suggested by Michal Simek.
---
drivers/mmc/host/mmci.c | 52 ++++++++++++++++-------------------------------
1 file changed, 17 insertions(+), 35 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index b0b81ac..93b1b10 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/device.h>
+#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/slab.h>
@@ -1456,15 +1457,9 @@ static int mmci_probe(struct amba_device *dev,
if (np)
mmci_dt_populate_generic_pdata(np, plat);
- ret = amba_request_regions(dev, DRIVER_NAME);
- if (ret)
- goto out;
-
mmc = mmc_alloc_host(sizeof(struct mmci_host), &dev->dev);
- if (!mmc) {
- ret = -ENOMEM;
- goto rel_regions;
- }
+ if (!mmc)
+ return -ENOMEM;
host = mmc_priv(mmc);
host->mmc = mmc;
@@ -1500,10 +1495,11 @@ static int mmci_probe(struct amba_device *dev,
dev_dbg(mmc_dev(mmc), "eventual mclk rate: %u Hz\n",
host->mclk);
}
+
host->phybase = dev->res.start;
- host->base = ioremap(dev->res.start, resource_size(&dev->res));
- if (!host->base) {
- ret = -ENOMEM;
+ host->base = devm_ioremap_resource(&dev->dev, &dev->res);
+ if (IS_ERR(host->base)) {
+ ret = PTR_ERR(host->base);
goto clk_disable;
}
@@ -1592,34 +1588,35 @@ static int mmci_probe(struct amba_device *dev,
if (plat->gpio_cd == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto err_gpio_cd;
+ goto clk_disable;
}
if (gpio_is_valid(plat->gpio_cd)) {
ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
if (ret)
- goto err_gpio_cd;
+ goto clk_disable;
}
if (plat->gpio_wp == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto err_gpio_cd;
+ goto clk_disable;
}
if (gpio_is_valid(plat->gpio_wp)) {
ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
if (ret)
- goto err_gpio_cd;
+ goto clk_disable;
}
- ret = request_irq(dev->irq[0], mmci_irq, IRQF_SHARED, DRIVER_NAME " (cmd)", host);
+ ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED,
+ DRIVER_NAME " (cmd)", host);
if (ret)
- goto err_gpio_cd;
+ goto clk_disable;
if (!dev->irq[1])
host->singleirq = true;
else {
- ret = request_irq(dev->irq[1], mmci_pio_irq, IRQF_SHARED,
- DRIVER_NAME " (pio)", host);
+ ret = devm_request_irq(&dev->dev, dev->irq[1], mmci_pio_irq,
+ IRQF_SHARED, DRIVER_NAME " (pio)", host);
if (ret)
- goto irq0_free;
+ goto clk_disable;
}
writel(MCI_IRQENABLE, host->base + MMCIMASK0);
@@ -1641,17 +1638,10 @@ static int mmci_probe(struct amba_device *dev,
return 0;
- irq0_free:
- free_irq(dev->irq[0], host);
- err_gpio_cd:
- iounmap(host->base);
clk_disable:
clk_disable_unprepare(host->clk);
host_free:
mmc_free_host(mmc);
- rel_regions:
- amba_release_regions(dev);
- out:
return ret;
}
@@ -1677,16 +1667,8 @@ static int mmci_remove(struct amba_device *dev)
writel(0, host->base + MMCIDATACTRL);
mmci_dma_release(host);
- free_irq(dev->irq[0], host);
- if (!host->singleirq)
- free_irq(dev->irq[1], host);
-
- iounmap(host->base);
clk_disable_unprepare(host->clk);
-
mmc_free_host(mmc);
-
- amba_release_regions(dev);
}
return 0;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 03/19] mmc: mmci: Update DT documentation
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-04-10 12:20 ` [PATCH V3 01/19] mmc: mmci: Convert to the mmc gpio API Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 02/19] mmc: mmci: Convert to devm functions Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 04/19] mmc: mmci: Add DT bindings for signal direction Ulf Hansson
` (16 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Document how to configure the regulator supplies and add an example of
a typical mmci DT node.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
Documentation/devicetree/bindings/mmc/mmci.txt | 39 ++++++++++++++++++++++--
1 file changed, 36 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 2b584ca..ff233d1 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -8,8 +8,41 @@ by mmc.txt and the properties used by the mmci driver.
Required properties:
- compatible : contains "arm,pl18x", "arm,primecell".
-- arm,primecell-periphid : contains the PrimeCell Peripheral ID.
+- vmmc-supply : phandle to the regulator device tree node, mentioned
+ as the VCC/VDD supply in the eMMC/SD specs.
Optional properties:
-- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable
-- mmc-cap-sd-highspeed : indicates whether SD is high speed capable
+- arm,primecell-periphid : contains the PrimeCell Peripheral ID, it overrides
+ the ID provided by the HW
+- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable.
+- mmc-cap-sd-highspeed : indicates whether SD is high speed capable.
+- vqmmc-supply : phandle to the regulator device tree node, mentioned
+ as the VCCQ/VDD_IO supply in the eMMC/SD specs.
+
+Example:
+
+sdi0_per1@80126000 {
+ compatible = "arm,pl18x", "arm,primecell";
+ reg = <0x80126000 0x1000>;
+ interrupts = <0 60 IRQ_TYPE_LEVEL_HIGH>;
+
+ dmas = <&dma 29 0 0x2>, /* Logical - DevToMem */
+ <&dma 29 0 0x0>; /* Logical - MemToDev */
+ dma-names = "rx", "tx";
+
+ clocks = <&prcc_kclk 1 5>, <&prcc_pclk 1 5>;
+ clock-names = "sdi", "apb_pclk";
+
+ max-frequency = <100000000>;
+ bus-width = <4>;
+ mmc-cap-sd-highspeed;
+ mmc-cap-mmc-highspeed;
+ cd-gpios = <&gpio2 31 0x4>; // 95
+
+ vmmc-supply = <&ab8500_ldo_aux3_reg>;
+ vqmmc-supply = <&vmmci>;
+
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&sdi0_default_mode>;
+ pinctrl-1 = <&sdi0_sleep_mode>;
+};
--
1.7.9.5
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 04/19] mmc: mmci: Add DT bindings for signal direction
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (2 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 03/19] mmc: mmci: Update DT documentation Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 05/19] mmc: mmci: Add DT bindings for feedback clock pin Ulf Hansson
` (15 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Some variants have support for indicating the bus signal directions,
which currently are configured through platform data.
Add corresponding DT bindings to enable us to move away from using the
platform data.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
Documentation/devicetree/bindings/mmc/mmci.txt | 11 ++++++++++-
drivers/mmc/host/mmci.c | 11 +++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index ff233d1..9bd2ffa 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -4,7 +4,8 @@ The ARM PrimeCell MMCI PL180 and PL181 provides an interface for
reading and writing to MultiMedia and SD cards alike.
This file documents differences between the core properties described
-by mmc.txt and the properties used by the mmci driver.
+by mmc.txt and the properties used by the mmci driver. Using "st" as
+the prefix for a property, indicates support by the ST Micro variant.
Required properties:
- compatible : contains "arm,pl18x", "arm,primecell".
@@ -18,6 +19,11 @@ Optional properties:
- mmc-cap-sd-highspeed : indicates whether SD is high speed capable.
- vqmmc-supply : phandle to the regulator device tree node, mentioned
as the VCCQ/VDD_IO supply in the eMMC/SD specs.
+- st,sig-dir-dat0 : bus signal direction pin used for DAT[0].
+- st,sig-dir-dat2 : bus signal direction pin used for DAT[2].
+- st,sig-dir-dat31 : bus signal direction pin used for DAT[3] and DAT[1].
+- st,sig-dir-dat74 : bus signal direction pin used for DAT[4] to DAT[7].
+- st,sig-dir-cmd : cmd signal direction pin used for CMD.
Example:
@@ -38,6 +44,9 @@ sdi0_per1@80126000 {
mmc-cap-sd-highspeed;
mmc-cap-mmc-highspeed;
cd-gpios = <&gpio2 31 0x4>; // 95
+ st,sig-dir-dat0;
+ st,sig-dir-dat2;
+ st,sig-dir-cmd;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
vqmmc-supply = <&vmmci>;
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 93b1b10..2766e5c 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1392,6 +1392,17 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np,
{
int bus_width = 0;
+ if (of_get_property(np, "st,sig-dir-dat0", NULL))
+ pdata->sigdir |= MCI_ST_DATA0DIREN;
+ if (of_get_property(np, "st,sig-dir-dat2", NULL))
+ pdata->sigdir |= MCI_ST_DATA2DIREN;
+ if (of_get_property(np, "st,sig-dir-dat31", NULL))
+ pdata->sigdir |= MCI_ST_DATA31DIREN;
+ if (of_get_property(np, "st,sig-dir-dat74", NULL))
+ pdata->sigdir |= MCI_ST_DATA74DIREN;
+ if (of_get_property(np, "st,sig-dir-cmd", NULL))
+ pdata->sigdir |= MCI_ST_CMDDIREN;
+
pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0);
--
1.7.9.5
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 05/19] mmc: mmci: Add DT bindings for feedback clock pin
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (3 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 04/19] mmc: mmci: Add DT bindings for signal direction Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 06/19] mmc: mmci: Use the common mmc DT parser Ulf Hansson
` (14 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
The ST Micro variant supports the option of using a feedback clock signal in
favor of the clockout pin when latching incoming signals on the data bus.
Since this is matter of how pins are being routed we need to provide a new DT
binding to be able to configure this through DT.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
Documentation/devicetree/bindings/mmc/mmci.txt | 2 ++
drivers/mmc/host/mmci.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 9bd2ffa..2c8756f 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -24,6 +24,7 @@ Optional properties:
- st,sig-dir-dat31 : bus signal direction pin used for DAT[3] and DAT[1].
- st,sig-dir-dat74 : bus signal direction pin used for DAT[4] to DAT[7].
- st,sig-dir-cmd : cmd signal direction pin used for CMD.
+- st,sig-pin-fbclk : feedback clock signal pin used.
Example:
@@ -47,6 +48,7 @@ sdi0_per1@80126000 {
st,sig-dir-dat0;
st,sig-dir-dat2;
st,sig-dir-cmd;
+ st,sig-pin-fbclk;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
vqmmc-supply = <&vmmci>;
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 2766e5c..173e7de 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1402,6 +1402,8 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np,
pdata->sigdir |= MCI_ST_DATA74DIREN;
if (of_get_property(np, "st,sig-dir-cmd", NULL))
pdata->sigdir |= MCI_ST_CMDDIREN;
+ if (of_get_property(np, "st,sig-pin-fbclk", NULL))
+ pdata->sigdir |= MCI_ST_FBCLKEN;
pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0);
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 06/19] mmc: mmci: Use the common mmc DT parser
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (4 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 05/19] mmc: mmci: Add DT bindings for feedback clock pin Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 07/19] ARM: ux500: Add mmci signal directions and feeback clock in DT for href Ulf Hansson
` (13 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Let mmci DT parser only handle the specific bindings related to mmci
and extend the DT support by converting to the common mmc DT parser.
While both DT and platform data exist, DT takes precedence. If there
are supplied DT data, the card detect and write protect GPIOS are
enforced to be provided through it.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 92 +++++++++++++++++------------------------------
1 file changed, 33 insertions(+), 59 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 173e7de..d21136c 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1386,12 +1386,9 @@ static struct mmc_host_ops mmci_ops = {
.start_signal_voltage_switch = mmci_sig_volt_switch,
};
-#ifdef CONFIG_OF
static void mmci_dt_populate_generic_pdata(struct device_node *np,
struct mmci_platform_data *pdata)
{
- int bus_width = 0;
-
if (of_get_property(np, "st,sig-dir-dat0", NULL))
pdata->sigdir |= MCI_ST_DATA0DIREN;
if (of_get_property(np, "st,sig-dir-dat2", NULL))
@@ -1404,46 +1401,22 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np,
pdata->sigdir |= MCI_ST_CMDDIREN;
if (of_get_property(np, "st,sig-pin-fbclk", NULL))
pdata->sigdir |= MCI_ST_FBCLKEN;
+}
- pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
- pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0);
-
- if (of_get_property(np, "cd-inverted", NULL))
- pdata->cd_invert = true;
- else
- pdata->cd_invert = false;
+static int mmci_of_parse(struct device_node *np, struct mmc_host *mmc)
+{
+ int ret = mmc_of_parse(mmc);
- of_property_read_u32(np, "max-frequency", &pdata->f_max);
- if (!pdata->f_max)
- pr_warn("%s has no 'max-frequency' property\n", np->full_name);
+ if (ret)
+ return ret;
if (of_get_property(np, "mmc-cap-mmc-highspeed", NULL))
- pdata->capabilities |= MMC_CAP_MMC_HIGHSPEED;
+ mmc->caps |= MMC_CAP_MMC_HIGHSPEED;
if (of_get_property(np, "mmc-cap-sd-highspeed", NULL))
- pdata->capabilities |= MMC_CAP_SD_HIGHSPEED;
+ mmc->caps |= MMC_CAP_SD_HIGHSPEED;
- of_property_read_u32(np, "bus-width", &bus_width);
- switch (bus_width) {
- case 0 :
- /* No bus-width supplied. */
- break;
- case 4 :
- pdata->capabilities |= MMC_CAP_4_BIT_DATA;
- break;
- case 8 :
- pdata->capabilities |= MMC_CAP_8_BIT_DATA;
- break;
- default :
- pr_warn("%s: Unsupported bus width\n", np->full_name);
- }
-}
-#else
-static void mmci_dt_populate_generic_pdata(struct device_node *np,
- struct mmci_platform_data *pdata)
-{
- return;
+ return 0;
}
-#endif
static int mmci_probe(struct amba_device *dev,
const struct amba_id *id)
@@ -1474,6 +1447,10 @@ static int mmci_probe(struct amba_device *dev,
if (!mmc)
return -ENOMEM;
+ ret = mmci_of_parse(np, mmc);
+ if (ret)
+ goto host_free;
+
host = mmc_priv(mmc);
host->mmc = mmc;
@@ -1526,14 +1503,15 @@ static int mmci_probe(struct amba_device *dev,
else
mmc->f_min = DIV_ROUND_UP(host->mclk, 512);
/*
- * If the platform data supplies a maximum operating
- * frequency, this takes precedence. Else, we fall back
- * to using the module parameter, which has a (low)
- * default value in case it is not specified. Either
- * value must not exceed the clock rate into the block,
- * of course.
+ * If no maximum operating frequency is supplied, fall back to use
+ * the module parameter, which has a (low) default value in case it
+ * is not specified. Either value must not exceed the clock rate into
+ * the block, of course. Also note that DT takes precedence over
+ * platform data.
*/
- if (plat->f_max)
+ if (mmc->f_max)
+ mmc->f_max = min(host->mclk, mmc->f_max);
+ else if (plat->f_max)
mmc->f_max = min(host->mclk, plat->f_max);
else
mmc->f_max = min(host->mclk, fmax);
@@ -1546,11 +1524,14 @@ static int mmci_probe(struct amba_device *dev,
else if (plat->ocr_mask)
dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n");
- mmc->caps = plat->capabilities;
- mmc->caps2 = plat->capabilities2;
- if (!plat->cd_invert)
- mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
- mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
+ /* DT takes precedence over platform data. */
+ mmc->caps = np ? mmc->caps : plat->capabilities;
+ mmc->caps2 = np ? mmc->caps2 : plat->capabilities2;
+ if (!np) {
+ if (!plat->cd_invert)
+ mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
+ mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
+ }
if (variant->busy_detect) {
mmci_ops.card_busy = mmci_card_busy;
@@ -1562,7 +1543,7 @@ static int mmci_probe(struct amba_device *dev,
mmc->ops = &mmci_ops;
/* We support these PM capabilities. */
- mmc->pm_caps = MMC_PM_KEEP_POWER;
+ mmc->pm_caps |= MMC_PM_KEEP_POWER;
/*
* We can do SGIO
@@ -1599,20 +1580,13 @@ static int mmci_probe(struct amba_device *dev,
writel(0, host->base + MMCIMASK1);
writel(0xfff, host->base + MMCICLEAR);
- if (plat->gpio_cd == -EPROBE_DEFER) {
- ret = -EPROBE_DEFER;
- goto clk_disable;
- }
- if (gpio_is_valid(plat->gpio_cd)) {
+ /* If DT, cd/wp gpios must be supplied through it. */
+ if (!np && gpio_is_valid(plat->gpio_cd)) {
ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0);
if (ret)
goto clk_disable;
}
- if (plat->gpio_wp == -EPROBE_DEFER) {
- ret = -EPROBE_DEFER;
- goto clk_disable;
- }
- if (gpio_is_valid(plat->gpio_wp)) {
+ if (!np && gpio_is_valid(plat->gpio_wp)) {
ret = mmc_gpio_request_ro(mmc, plat->gpio_wp);
if (ret)
goto clk_disable;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 07/19] ARM: ux500: Add mmci signal directions and feeback clock in DT for href
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (5 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 06/19] mmc: mmci: Use the common mmc DT parser Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 08/19] ARM: ux500: Convert to the common mmc DT bindings for highspeed mode Ulf Hansson
` (12 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Reviewed-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-href.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 6cb9b68..46dce42 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -118,6 +118,10 @@
bus-width = <4>;
mmc-cap-sd-highspeed;
mmc-cap-mmc-highspeed;
+ st,sig-dir-dat0;
+ st,sig-dir-dat2;
+ st,sig-dir-cmd;
+ st,sig-pin-fbclk;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
vqmmc-supply = <&vmmci>;
pinctrl-names = "default", "sleep";
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 08/19] ARM: ux500: Convert to the common mmc DT bindings for highspeed mode
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (6 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 07/19] ARM: ux500: Add mmci signal directions and feeback clock in DT for href Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 09/19] ARM: nomadik: " Ulf Hansson
` (11 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
The mmci host driver supports the common mmc DT parser, which enables
us to use the use common names instead.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-ccu9540.dts | 6 +++---
arch/arm/boot/dts/ste-href.dtsi | 8 ++++----
arch/arm/boot/dts/ste-snowball.dts | 4 ++--
3 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/arch/arm/boot/dts/ste-ccu9540.dts b/arch/arm/boot/dts/ste-ccu9540.dts
index 2295087..651c56d 100644
--- a/arch/arm/boot/dts/ste-ccu9540.dts
+++ b/arch/arm/boot/dts/ste-ccu9540.dts
@@ -38,8 +38,8 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <4>;
- mmc-cap-sd-highspeed;
- mmc-cap-mmc-highspeed;
+ cap-sd-highspeed;
+ cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
cd-gpios = <&gpio7 6 0x4>; // 230
@@ -63,7 +63,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <8>;
- mmc-cap-mmc-highspeed;
+ cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux2_reg>;
status = "okay";
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 46dce42..3f07c58 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -116,8 +116,8 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <4>;
- mmc-cap-sd-highspeed;
- mmc-cap-mmc-highspeed;
+ cap-sd-highspeed;
+ cap-mmc-highspeed;
st,sig-dir-dat0;
st,sig-dir-dat2;
st,sig-dir-cmd;
@@ -148,7 +148,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <8>;
- mmc-cap-mmc-highspeed;
+ cap-mmc-highspeed;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi2_default_mode>;
pinctrl-1 = <&sdi2_sleep_mode>;
@@ -161,7 +161,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <8>;
- mmc-cap-mmc-highspeed;
+ cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux2_reg>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi4_default_mode>;
diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index a2f632d..474ef832 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -156,7 +156,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <4>;
- mmc-cap-mmc-highspeed;
+ cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux3_reg>;
vqmmc-supply = <&vmmci>;
pinctrl-names = "default", "sleep";
@@ -195,7 +195,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <8>;
- mmc-cap-mmc-highspeed;
+ cap-mmc-highspeed;
vmmc-supply = <&ab8500_ldo_aux2_reg>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi4_default_mode>;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 09/19] ARM: nomadik: Convert to the common mmc DT bindings for highspeed mode
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (7 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 08/19] ARM: ux500: Convert to the common mmc DT bindings for highspeed mode Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 10/19] ARM: u300: " Ulf Hansson
` (10 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson,
Alessandro Rubini
The mmci host driver supports the common mmc DT parser, which enables
us to use the use common names instead.
Cc: Alessandro Rubini <rubini-9wsNiZum9E8@public.gmane.org>
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 5acc044..d316c95 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -840,8 +840,8 @@
interrupts = <22>;
max-frequency = <48000000>;
bus-width = <4>;
- mmc-cap-mmc-highspeed;
- mmc-cap-sd-highspeed;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
cd-gpios = <&gpio3 15 0x1>;
cd-inverted;
pinctrl-names = "default";
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 10/19] ARM: u300: Convert to the common mmc DT bindings for highspeed mode
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (8 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 09/19] ARM: nomadik: " Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 11/19] mmc: mmci: Mark the DT bindings for highspeed mode as deprecated Ulf Hansson
` (9 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
The mmci host driver supports the common mmc DT parser, which enables
us to use the use common names instead.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-u300.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/ste-u300.dts b/arch/arm/boot/dts/ste-u300.dts
index 6fe688e..82a6616 100644
--- a/arch/arm/boot/dts/ste-u300.dts
+++ b/arch/arm/boot/dts/ste-u300.dts
@@ -442,8 +442,8 @@
clock-names = "apb_pclk", "mclk";
max-frequency = <24000000>;
bus-width = <4>; // SD-card slot
- mmc-cap-mmc-highspeed;
- mmc-cap-sd-highspeed;
+ cap-mmc-highspeed;
+ cap-sd-highspeed;
cd-gpios = <&gpio 12 0x4>;
cd-inverted;
vmmc-supply = <&ab3100_ldo_g_reg>;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 11/19] mmc: mmci: Mark the DT bindings for highspeed mode as deprecated
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (9 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 10/19] ARM: u300: " Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 12/19] mmc: mmci: Enable MMC_CAP_CMD23 Ulf Hansson
` (8 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
The common mmc DT parser supports bindings for highspeed mode, thus
there are no need for mmci to provide it's own versions for these. Mark
them as deprecated in the documentation.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
Documentation/devicetree/bindings/mmc/mmci.txt | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 2c8756f..03796cf 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -15,8 +15,6 @@ Required properties:
Optional properties:
- arm,primecell-periphid : contains the PrimeCell Peripheral ID, it overrides
the ID provided by the HW
-- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable.
-- mmc-cap-sd-highspeed : indicates whether SD is high speed capable.
- vqmmc-supply : phandle to the regulator device tree node, mentioned
as the VCCQ/VDD_IO supply in the eMMC/SD specs.
- st,sig-dir-dat0 : bus signal direction pin used for DAT[0].
@@ -26,6 +24,10 @@ Optional properties:
- st,sig-dir-cmd : cmd signal direction pin used for CMD.
- st,sig-pin-fbclk : feedback clock signal pin used.
+Deprecated properties:
+- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable.
+- mmc-cap-sd-highspeed : indicates whether SD is high speed capable.
+
Example:
sdi0_per1@80126000 {
@@ -42,8 +44,8 @@ sdi0_per1@80126000 {
max-frequency = <100000000>;
bus-width = <4>;
- mmc-cap-sd-highspeed;
- mmc-cap-mmc-highspeed;
+ cap-sd-highspeed;
+ cap-mmc-highspeed;
cd-gpios = <&gpio2 31 0x4>; // 95
st,sig-dir-dat0;
st,sig-dir-dat2;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 12/19] mmc: mmci: Enable MMC_CAP_CMD23
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (10 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 11/19] mmc: mmci: Mark the DT bindings for highspeed mode as deprecated Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 13/19] ARM: ux500: Add the mmc capabilities flags to DT Ulf Hansson
` (7 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
This is pure software configuration, which mmci has been supporting for
a while. Let's enable it as default so we can take benefit from it.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index d21136c..41bc054 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1533,6 +1533,9 @@ static int mmci_probe(struct amba_device *dev,
mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
}
+ /* We support these capabilities. */
+ mmc->caps |= MMC_CAP_CMD23;
+
if (variant->busy_detect) {
mmci_ops.card_busy = mmci_card_busy;
mmci_write_datactrlreg(host, MCI_ST_DPSM_BUSYMODE);
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 13/19] ARM: ux500: Add the mmc capabilities flags to DT
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (11 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 12/19] mmc: mmci: Enable MMC_CAP_CMD23 Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 14/19] ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for href Ulf Hansson
` (6 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-href.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 3f07c58..48ea4c1 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -118,6 +118,9 @@
bus-width = <4>;
cap-sd-highspeed;
cap-mmc-highspeed;
+ sd-uhs-sdr12;
+ sd-uhs-sdr25;
+ full-pwr-cycle;
st,sig-dir-dat0;
st,sig-dir-dat2;
st,sig-dir-cmd;
@@ -136,6 +139,7 @@
arm,primecell-periphid = <0x10480180>;
max-frequency = <100000000>;
bus-width = <4>;
+ non-removable;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi1_default_mode>;
pinctrl-1 = <&sdi1_sleep_mode>;
@@ -149,6 +153,7 @@
max-frequency = <100000000>;
bus-width = <8>;
cap-mmc-highspeed;
+ non-removable;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi2_default_mode>;
pinctrl-1 = <&sdi2_sleep_mode>;
@@ -162,6 +167,7 @@
max-frequency = <100000000>;
bus-width = <8>;
cap-mmc-highspeed;
+ non-removable;
vmmc-supply = <&ab8500_ldo_aux2_reg>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi4_default_mode>;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 14/19] ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for href
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (12 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 13/19] ARM: ux500: Add the mmc capabilities flags to DT Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 15/19] ARM: ux500: Remove redundant board file for mmci platform data Ulf Hansson
` (5 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Add a node in DT for the proper regulator which means we can move away
from the mmci platform data which currently holds the corresponding OCR
mask.
The mmci driver can then calculate the OCR mask based on the voltages
supported by the regulator, instead of relying on the platform data.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/boot/dts/ste-href.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 48ea4c1..bf8f0ed 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -154,6 +154,7 @@
bus-width = <8>;
cap-mmc-highspeed;
non-removable;
+ vmmc-supply = <&db8500_vsmps2_reg>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sdi2_default_mode>;
pinctrl-1 = <&sdi2_sleep_mode>;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 15/19] ARM: ux500: Remove redundant board file for mmci platform data
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (13 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 14/19] ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for href Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:20 ` [PATCH V3 16/19] mmc: mmci: Enforce DT for signal direction and feedback clock Ulf Hansson
` (4 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Since all platform data has been transfered to DT, we don't need the
container for the mmci platform data anymore. Remove the file and the
corresponding references to it's data.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Acked-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
arch/arm/mach-ux500/Makefile | 3 +-
arch/arm/mach-ux500/board-mop500-sdi.c | 166 --------------------------------
arch/arm/mach-ux500/board-mop500.h | 5 -
arch/arm/mach-ux500/cpu-db8500.c | 4 -
4 files changed, 1 insertion(+), 177 deletions(-)
delete mode 100644 arch/arm/mach-ux500/board-mop500-sdi.c
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index de544aa..9741de95 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -5,8 +5,7 @@
obj-y := cpu.o id.o timer.o pm.o
obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o
obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o
-obj-$(CONFIG_MACH_MOP500) += board-mop500-sdi.o \
- board-mop500-regulators.o \
+obj-$(CONFIG_MACH_MOP500) += board-mop500-regulators.o \
board-mop500-audio.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
deleted file mode 100644
index fcbf3a1..0000000
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Hanumath Prasad <hanumath.prasad-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org>
- * License terms: GNU General Public License (GPL) version 2
- */
-
-#include <linux/kernel.h>
-#include <linux/gpio.h>
-#include <linux/amba/bus.h>
-#include <linux/amba/mmci.h>
-#include <linux/mmc/host.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/dma-ste-dma40.h>
-
-#include <asm/mach-types.h>
-
-#include "db8500-regs.h"
-#include "board-mop500.h"
-#include "ste-dma40-db8500.h"
-
-/*
- * v2 has a new version of this block that need to be forced, the number found
- * in hardware is incorrect
- */
-#define U8500_SDI_V2_PERIPHID 0x10480180
-
-/*
- * SDI 0 (MicroSD slot)
- */
-
-#ifdef CONFIG_STE_DMA40
-struct stedma40_chan_cfg mop500_sdi0_dma_cfg_rx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_DEV_TO_MEM,
- .dev_type = DB8500_DMA_DEV29_SD_MM0,
-};
-
-static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_MEM_TO_DEV,
- .dev_type = DB8500_DMA_DEV29_SD_MM0,
-};
-#endif
-
-struct mmci_platform_data mop500_sdi0_data = {
- .f_max = 100000000,
- .capabilities = MMC_CAP_4_BIT_DATA |
- MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_MMC_HIGHSPEED |
- MMC_CAP_ERASE |
- MMC_CAP_UHS_SDR12 |
- MMC_CAP_UHS_SDR25,
- .gpio_wp = -1,
- .sigdir = MCI_ST_FBCLKEN |
- MCI_ST_CMDDIREN |
- MCI_ST_DATA0DIREN |
- MCI_ST_DATA2DIREN,
-#ifdef CONFIG_STE_DMA40
- .dma_filter = stedma40_filter,
- .dma_rx_param = &mop500_sdi0_dma_cfg_rx,
- .dma_tx_param = &mop500_sdi0_dma_cfg_tx,
-#endif
-};
-
-/*
- * SDI1 (SDIO WLAN)
- */
-#ifdef CONFIG_STE_DMA40
-static struct stedma40_chan_cfg sdi1_dma_cfg_rx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_DEV_TO_MEM,
- .dev_type = DB8500_DMA_DEV32_SD_MM1,
-};
-
-static struct stedma40_chan_cfg sdi1_dma_cfg_tx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_MEM_TO_DEV,
- .dev_type = DB8500_DMA_DEV32_SD_MM1,
-};
-#endif
-
-struct mmci_platform_data mop500_sdi1_data = {
- .ocr_mask = MMC_VDD_29_30,
- .f_max = 100000000,
- .capabilities = MMC_CAP_4_BIT_DATA |
- MMC_CAP_NONREMOVABLE,
- .gpio_cd = -1,
- .gpio_wp = -1,
-#ifdef CONFIG_STE_DMA40
- .dma_filter = stedma40_filter,
- .dma_rx_param = &sdi1_dma_cfg_rx,
- .dma_tx_param = &sdi1_dma_cfg_tx,
-#endif
-};
-
-/*
- * SDI 2 (POP eMMC, not on DB8500ed)
- */
-
-#ifdef CONFIG_STE_DMA40
-struct stedma40_chan_cfg mop500_sdi2_dma_cfg_rx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_DEV_TO_MEM,
- .dev_type = DB8500_DMA_DEV28_SD_MM2,
-};
-
-static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_MEM_TO_DEV,
- .dev_type = DB8500_DMA_DEV28_SD_MM2,
-};
-#endif
-
-struct mmci_platform_data mop500_sdi2_data = {
- .ocr_mask = MMC_VDD_165_195,
- .f_max = 100000000,
- .capabilities = MMC_CAP_4_BIT_DATA |
- MMC_CAP_8_BIT_DATA |
- MMC_CAP_NONREMOVABLE |
- MMC_CAP_MMC_HIGHSPEED |
- MMC_CAP_ERASE |
- MMC_CAP_CMD23,
- .gpio_cd = -1,
- .gpio_wp = -1,
-#ifdef CONFIG_STE_DMA40
- .dma_filter = stedma40_filter,
- .dma_rx_param = &mop500_sdi2_dma_cfg_rx,
- .dma_tx_param = &mop500_sdi2_dma_cfg_tx,
-#endif
-};
-
-/*
- * SDI 4 (on-board eMMC)
- */
-
-#ifdef CONFIG_STE_DMA40
-struct stedma40_chan_cfg mop500_sdi4_dma_cfg_rx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_DEV_TO_MEM,
- .dev_type = DB8500_DMA_DEV42_SD_MM4,
-};
-
-static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = {
- .mode = STEDMA40_MODE_LOGICAL,
- .dir = DMA_MEM_TO_DEV,
- .dev_type = DB8500_DMA_DEV42_SD_MM4,
-};
-#endif
-
-struct mmci_platform_data mop500_sdi4_data = {
- .f_max = 100000000,
- .capabilities = MMC_CAP_4_BIT_DATA |
- MMC_CAP_8_BIT_DATA |
- MMC_CAP_NONREMOVABLE |
- MMC_CAP_MMC_HIGHSPEED |
- MMC_CAP_ERASE |
- MMC_CAP_CMD23,
- .gpio_cd = -1,
- .gpio_wp = -1,
-#ifdef CONFIG_STE_DMA40
- .dma_filter = stedma40_filter,
- .dma_rx_param = &mop500_sdi4_dma_cfg_rx,
- .dma_tx_param = &mop500_sdi4_dma_cfg_tx,
-#endif
-};
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 32cc0d8..7c7b0ad 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -8,12 +8,7 @@
#define __BOARD_MOP500_H
#include <linux/platform_data/asoc-ux500-msp.h>
-#include <linux/amba/mmci.h>
-extern struct mmci_platform_data mop500_sdi0_data;
-extern struct mmci_platform_data mop500_sdi1_data;
-extern struct mmci_platform_data mop500_sdi2_data;
-extern struct mmci_platform_data mop500_sdi4_data;
extern struct msp_i2s_platform_data msp0_platform_data;
extern struct msp_i2s_platform_data msp1_platform_data;
extern struct msp_i2s_platform_data msp2_platform_data;
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 8820f60..fa308f0 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -146,10 +146,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
/* Requires call-back bindings. */
OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
/* Requires DMA bindings. */
- OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data),
- OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", &mop500_sdi1_data),
- OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", &mop500_sdi2_data),
- OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
"ux500-msp-i2s.0", &msp0_platform_data),
OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 16/19] mmc: mmci: Enforce DT for signal direction and feedback clock
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (14 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 15/19] ARM: ux500: Remove redundant board file for mmci platform data Ulf Hansson
@ 2014-04-10 12:20 ` Ulf Hansson
2014-04-10 12:21 ` [PATCH V3 17/19] mmc: mmci: Enforce mmc capabilities through DT Ulf Hansson
` (3 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:20 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Remove the option to provide signal direction configuration and
feeback clock as platform data, enforce it through DT.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 34 ++++++++++++++--------------------
drivers/mmc/host/mmci.h | 11 +++++++++++
include/linux/amba/mmci.h | 16 ----------------
3 files changed, 25 insertions(+), 36 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 41bc054..cac5f28 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1287,7 +1287,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
* indicating signal direction for the signals in
* the SD/MMC bus and feedback-clock usage.
*/
- pwr |= host->plat->sigdir;
+ pwr |= host->pwr_reg_add;
if (ios->bus_width == MMC_BUS_WIDTH_4)
pwr &= ~MCI_ST_DATA74DIREN;
@@ -1386,29 +1386,26 @@ static struct mmc_host_ops mmci_ops = {
.start_signal_voltage_switch = mmci_sig_volt_switch,
};
-static void mmci_dt_populate_generic_pdata(struct device_node *np,
- struct mmci_platform_data *pdata)
+static int mmci_of_parse(struct device_node *np, struct mmc_host *mmc)
{
+ struct mmci_host *host = mmc_priv(mmc);
+ int ret = mmc_of_parse(mmc);
+
+ if (ret)
+ return ret;
+
if (of_get_property(np, "st,sig-dir-dat0", NULL))
- pdata->sigdir |= MCI_ST_DATA0DIREN;
+ host->pwr_reg_add |= MCI_ST_DATA0DIREN;
if (of_get_property(np, "st,sig-dir-dat2", NULL))
- pdata->sigdir |= MCI_ST_DATA2DIREN;
+ host->pwr_reg_add |= MCI_ST_DATA2DIREN;
if (of_get_property(np, "st,sig-dir-dat31", NULL))
- pdata->sigdir |= MCI_ST_DATA31DIREN;
+ host->pwr_reg_add |= MCI_ST_DATA31DIREN;
if (of_get_property(np, "st,sig-dir-dat74", NULL))
- pdata->sigdir |= MCI_ST_DATA74DIREN;
+ host->pwr_reg_add |= MCI_ST_DATA74DIREN;
if (of_get_property(np, "st,sig-dir-cmd", NULL))
- pdata->sigdir |= MCI_ST_CMDDIREN;
+ host->pwr_reg_add |= MCI_ST_CMDDIREN;
if (of_get_property(np, "st,sig-pin-fbclk", NULL))
- pdata->sigdir |= MCI_ST_FBCLKEN;
-}
-
-static int mmci_of_parse(struct device_node *np, struct mmc_host *mmc)
-{
- int ret = mmc_of_parse(mmc);
-
- if (ret)
- return ret;
+ host->pwr_reg_add |= MCI_ST_FBCLKEN;
if (of_get_property(np, "mmc-cap-mmc-highspeed", NULL))
mmc->caps |= MMC_CAP_MMC_HIGHSPEED;
@@ -1440,9 +1437,6 @@ static int mmci_probe(struct amba_device *dev,
return -ENOMEM;
}
- if (np)
- mmci_dt_populate_generic_pdata(np, plat);
-
mmc = mmc_alloc_host(sizeof(struct mmci_host), &dev->dev);
if (!mmc)
return -ENOMEM;
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 8fc5814..347d942 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -13,6 +13,16 @@
#define MCI_PWR_ON 0x03
#define MCI_OD (1 << 6)
#define MCI_ROD (1 << 7)
+/*
+ * The ST Micro version does not have ROD and reuse the voltage registers for
+ * direction settings.
+ */
+#define MCI_ST_DATA2DIREN (1 << 2)
+#define MCI_ST_CMDDIREN (1 << 3)
+#define MCI_ST_DATA0DIREN (1 << 4)
+#define MCI_ST_DATA31DIREN (1 << 5)
+#define MCI_ST_FBCLKEN (1 << 7)
+#define MCI_ST_DATA74DIREN (1 << 8)
#define MMCICLOCK 0x004
#define MCI_CLK_ENABLE (1 << 8)
@@ -183,6 +193,7 @@ struct mmci_host {
unsigned int mclk;
unsigned int cclk;
u32 pwr_reg;
+ u32 pwr_reg_add;
u32 clk_reg;
u32 datactrl_reg;
u32 busy_status;
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 32a89cf..0d3ff95 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -6,19 +6,6 @@
#include <linux/mmc/host.h>
-
-/*
- * These defines is places here due to access is needed from machine
- * configuration files. The ST Micro version does not have ROD and
- * reuse the voltage registers for direction settings.
- */
-#define MCI_ST_DATA2DIREN (1 << 2)
-#define MCI_ST_CMDDIREN (1 << 3)
-#define MCI_ST_DATA0DIREN (1 << 4)
-#define MCI_ST_DATA31DIREN (1 << 5)
-#define MCI_ST_FBCLKEN (1 << 7)
-#define MCI_ST_DATA74DIREN (1 << 8)
-
/* Just some dummy forwarding */
struct dma_chan;
@@ -45,8 +32,6 @@ struct dma_chan;
* @capabilities: the capabilities of the block as implemented in
* this platform, signify anything MMC_CAP_* from mmc/host.h
* @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
- * @sigdir: a bit field indicating for what bits in the MMC bus the host
- * should enable signal direction indication.
* @dma_filter: function used to select an appropriate RX and TX
* DMA channel to be used for DMA, if and only if you're deploying the
* generic DMA engine
@@ -69,7 +54,6 @@ struct mmci_platform_data {
bool cd_invert;
unsigned long capabilities;
unsigned long capabilities2;
- u32 sigdir;
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
void *dma_rx_param;
void *dma_tx_param;
--
1.7.9.5
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 17/19] mmc: mmci: Enforce mmc capabilities through DT
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (15 preceding siblings ...)
2014-04-10 12:20 ` [PATCH V3 16/19] mmc: mmci: Enforce DT for signal direction and feedback clock Ulf Hansson
@ 2014-04-10 12:21 ` Ulf Hansson
2014-04-10 12:21 ` [PATCH V3 18/19] mmc: mmci: Enforce DMA configuration " Ulf Hansson
` (2 subsequent siblings)
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:21 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Remove the option to provide the flags for mmc capabilities as platform
data, enforce it through DT.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 2 --
include/linux/amba/mmci.h | 5 -----
2 files changed, 7 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index cac5f28..9a87bad 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1519,8 +1519,6 @@ static int mmci_probe(struct amba_device *dev,
dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n");
/* DT takes precedence over platform data. */
- mmc->caps = np ? mmc->caps : plat->capabilities;
- mmc->caps2 = np ? mmc->caps2 : plat->capabilities2;
if (!np) {
if (!plat->cd_invert)
mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 0d3ff95..b992fc9 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -29,9 +29,6 @@ struct dma_chan;
* @gpio_wp: read this GPIO pin to see if the card is write protected
* @gpio_cd: read this GPIO pin to detect card insertion
* @cd_invert: true if the gpio_cd pin value is active low
- * @capabilities: the capabilities of the block as implemented in
- * this platform, signify anything MMC_CAP_* from mmc/host.h
- * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
* @dma_filter: function used to select an appropriate RX and TX
* DMA channel to be used for DMA, if and only if you're deploying the
* generic DMA engine
@@ -52,8 +49,6 @@ struct mmci_platform_data {
int gpio_wp;
int gpio_cd;
bool cd_invert;
- unsigned long capabilities;
- unsigned long capabilities2;
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
void *dma_rx_param;
void *dma_tx_param;
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 18/19] mmc: mmci: Enforce DMA configuration through DT
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (16 preceding siblings ...)
2014-04-10 12:21 ` [PATCH V3 17/19] mmc: mmci: Enforce mmc capabilities through DT Ulf Hansson
@ 2014-04-10 12:21 ` Ulf Hansson
[not found] ` <1397132462-8005-19-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2014-04-10 12:21 ` [PATCH V3 19/19] mmc: mmci: Enforce max frequency " Ulf Hansson
2014-04-10 12:26 ` [PATCH V3 00/19] mmc: mmci: Improve DT support Ulf Hansson
19 siblings, 1 reply; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:21 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Remove the option to provide DMA configuration as platform data,
enforce it through DT.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 24 +-----------------------
include/linux/amba/mmci.h | 17 -----------------
2 files changed, 1 insertion(+), 40 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 9a87bad..04cff5e 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -366,7 +366,6 @@ static void mmci_init_sg(struct mmci_host *host, struct mmc_data *data)
#ifdef CONFIG_DMA_ENGINE
static void mmci_dma_setup(struct mmci_host *host)
{
- struct mmci_platform_data *plat = host->plat;
const char *rxname, *txname;
dma_cap_mask_t mask;
@@ -380,25 +379,6 @@ static void mmci_dma_setup(struct mmci_host *host)
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- if (plat && plat->dma_filter) {
- if (!host->dma_rx_channel && plat->dma_rx_param) {
- host->dma_rx_channel = dma_request_channel(mask,
- plat->dma_filter,
- plat->dma_rx_param);
- /* E.g if no DMA hardware is present */
- if (!host->dma_rx_channel)
- dev_err(mmc_dev(host->mmc), "no RX DMA channel\n");
- }
-
- if (!host->dma_tx_channel && plat->dma_tx_param) {
- host->dma_tx_channel = dma_request_channel(mask,
- plat->dma_filter,
- plat->dma_tx_param);
- if (!host->dma_tx_channel)
- dev_warn(mmc_dev(host->mmc), "no TX DMA channel\n");
- }
- }
-
/*
* If only an RX channel is specified, the driver will
* attempt to use it bidirectionally, however if it is
@@ -446,11 +426,9 @@ static void mmci_dma_setup(struct mmci_host *host)
*/
static inline void mmci_dma_release(struct mmci_host *host)
{
- struct mmci_platform_data *plat = host->plat;
-
if (host->dma_rx_channel)
dma_release_channel(host->dma_rx_channel);
- if (host->dma_tx_channel && plat->dma_tx_param)
+ if (host->dma_tx_channel)
dma_release_channel(host->dma_tx_channel);
host->dma_rx_channel = host->dma_tx_channel = NULL;
}
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index b992fc9..bf339ff 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -6,9 +6,6 @@
#include <linux/mmc/host.h>
-/* Just some dummy forwarding */
-struct dma_chan;
-
/**
* struct mmci_platform_data - platform configuration for the MMCI
* (also known as PL180) block.
@@ -29,17 +26,6 @@ struct dma_chan;
* @gpio_wp: read this GPIO pin to see if the card is write protected
* @gpio_cd: read this GPIO pin to detect card insertion
* @cd_invert: true if the gpio_cd pin value is active low
- * @dma_filter: function used to select an appropriate RX and TX
- * DMA channel to be used for DMA, if and only if you're deploying the
- * generic DMA engine
- * @dma_rx_param: parameter passed to the DMA allocation
- * filter in order to select an appropriate RX channel. If
- * there is a bidirectional RX+TX channel, then just specify
- * this and leave dma_tx_param set to NULL
- * @dma_tx_param: parameter passed to the DMA allocation
- * filter in order to select an appropriate TX channel. If this
- * is NULL the driver will attempt to use the RX channel as a
- * bidirectional channel
*/
struct mmci_platform_data {
unsigned int f_max;
@@ -49,9 +35,6 @@ struct mmci_platform_data {
int gpio_wp;
int gpio_cd;
bool cd_invert;
- bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
- void *dma_rx_param;
- void *dma_tx_param;
};
#endif
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* [PATCH V3 19/19] mmc: mmci: Enforce max frequency configuration through DT
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (17 preceding siblings ...)
2014-04-10 12:21 ` [PATCH V3 18/19] mmc: mmci: Enforce DMA configuration " Ulf Hansson
@ 2014-04-10 12:21 ` Ulf Hansson
2014-04-10 12:26 ` [PATCH V3 00/19] mmc: mmci: Improve DT support Ulf Hansson
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:21 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, Russell King,
Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Ulf Hansson
Remove the option to provide a maximum frequency as platform data,
enforce it through DT.
Signed-off-by: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
drivers/mmc/host/mmci.c | 5 +----
include/linux/amba/mmci.h | 4 ----
2 files changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 04cff5e..83f5e56 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1478,13 +1478,10 @@ static int mmci_probe(struct amba_device *dev,
* If no maximum operating frequency is supplied, fall back to use
* the module parameter, which has a (low) default value in case it
* is not specified. Either value must not exceed the clock rate into
- * the block, of course. Also note that DT takes precedence over
- * platform data.
+ * the block, of course.
*/
if (mmc->f_max)
mmc->f_max = min(host->mclk, mmc->f_max);
- else if (plat->f_max)
- mmc->f_max = min(host->mclk, plat->f_max);
else
mmc->f_max = min(host->mclk, fmax);
dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index bf339ff..8c98113 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -9,9 +9,6 @@
/**
* struct mmci_platform_data - platform configuration for the MMCI
* (also known as PL180) block.
- * @f_max: the maximum operational frequency for this host in this
- * platform configuration. When this is specified it takes precedence
- * over the module parameter for the same frequency.
* @ocr_mask: available voltages on the 4 pins from the block, this
* is ignored if a regulator is used, see the MMC_VDD_* masks in
* mmc/host.h
@@ -28,7 +25,6 @@
* @cd_invert: true if the gpio_cd pin value is active low
*/
struct mmci_platform_data {
- unsigned int f_max;
unsigned int ocr_mask;
int (*ios_handler)(struct device *, struct mmc_ios *);
unsigned int (*status)(struct device *);
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 22+ messages in thread* Re: [PATCH V3 00/19] mmc: mmci: Improve DT support
[not found] ` <1397132462-8005-1-git-send-email-ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
` (18 preceding siblings ...)
2014-04-10 12:21 ` [PATCH V3 19/19] mmc: mmci: Enforce max frequency " Ulf Hansson
@ 2014-04-10 12:26 ` Ulf Hansson
19 siblings, 0 replies; 22+ messages in thread
From: Ulf Hansson @ 2014-04-10 12:26 UTC (permalink / raw)
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Russell King, Linus Walleij
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Rob Herring,
Ulf Hansson
On 10 April 2014 14:20, Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> Step by step, improve the DT support for the mmci host driver.
>
> This enables us to move the final pieces of platform data for mmci for ux500
> into DT. We are then able to remove yet another machine specific file for ux500.
>
> This patchset needs to be merged together. I suggest we go through Russell's
> ARM tree, since most of the patches are mmci specific which he maintains -
> unless someone think there is a better alternative.
>
> I will thus seek acks from the SOC maintainers for the SOC specific patches.
>
> The goal is to queue this for 3.16, thus I might need to rebase the patches for
> 3.15 rc[n]. Still I would appreciate any comments at this point.
>
> Changes in v3:
> - Adopting to review comments from Michal Simek for patch 2.
> - Rebased patches and added some acks/reviewed by tags.
>
> Changes in v2:
> - Adopting to review comments from Rob Herring and Linus Walleij. More
> or less causing each an every patch to be rebased.
> - Removed the patch for regulator for the db8500-prcmu from this
> patchset, since Mark Brown already queued it for 3.15.
>
> Ulf Hansson (19):
> mmc: mmci: Convert to the mmc gpio API
> mmc: mmci: Convert to devm functions
> mmc: mmci: Update DT documentation
> mmc: mmci: Add DT bindings for signal direction
> mmc: mmci: Add DT bindings for feedback clock pin
> mmc: mmci: Use the common mmc DT parser
> ARM: ux500: Add mmci signal directions and feeback clock in DT for
> href
> ARM: ux500: Convert to the common mmc DT bindings for highspeed mode
> ARM: nomadik: Convert to the common mmc DT bindings for highspeed
> mode
> ARM: u300: Convert to the common mmc DT bindings for highspeed mode
> mmc: mmci: Mark the DT bindings for highspeed mode as deprecated
> mmc: mmci: Enable MMC_CAP_CMD23
> ARM: ux500: Add the mmc capabilities flags to DT
> ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for
> href
> ARM: ux500: Remove redundant board file for mmci platform data
> mmc: mmci: Enforce DT for signal direction and feedback clock
> mmc: mmci: Enforce mmc capabilities through DT
> mmc: mmci: Enforce DMA configuration through DT
> mmc: mmci: Enforce max frequency configuration through DT
>
> Documentation/devicetree/bindings/mmc/mmci.txt | 54 ++++-
> arch/arm/boot/dts/ste-ccu9540.dts | 6 +-
> arch/arm/boot/dts/ste-href.dtsi | 19 +-
> arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 4 +-
> arch/arm/boot/dts/ste-snowball.dts | 4 +-
> arch/arm/boot/dts/ste-u300.dts | 4 +-
> arch/arm/mach-ux500/Makefile | 3 +-
> arch/arm/mach-ux500/board-mop500-sdi.c | 166 ---------------
> arch/arm/mach-ux500/board-mop500.h | 5 -
> arch/arm/mach-ux500/cpu-db8500.c | 4 -
> drivers/mmc/host/mmci.c | 265 +++++++-----------------
> drivers/mmc/host/mmci.h | 14 +-
> include/linux/amba/mmci.h | 42 ----
> 13 files changed, 157 insertions(+), 433 deletions(-)
> delete mode 100644 arch/arm/mach-ux500/board-mop500-sdi.c
>
> --
> 1.7.9.5
>
>
>
Some cut/paste errors below. Please ignore the patchset summary above,
the below is the correct one.
Kind regards
Ulf Hansson
>
>
>
> Ulf Hansson (19):
> mmc: mmci: Convert to the mmc gpio API
> mmc: mmci: Convert to devm functions
> mmc: mmci: Update DT documentation
> mmc: mmci: Add DT bindings for signal direction
> mmc: mmci: Add DT bindings for feedback clock pin
> mmc: mmci: Use the common mmc DT parser
> ARM: ux500: Add mmci signal directions and feeback clock in DT for
> href
> ARM: ux500: Convert to the common mmc DT bindings for highspeed mode
> ARM: nomadik: Convert to the common mmc DT bindings for highspeed
> mode
> ARM: u300: Convert to the common mmc DT bindings for highspeed mode
> mmc: mmci: Mark the DT bindings for highspeed mode as deprecated
> mmc: mmci: Enable MMC_CAP_CMD23
> ARM: ux500: Add the mmc capabilities flags to DT
> ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for
> href
> ARM: ux500: Remove redundant board file for mmci platform data
> mmc: mmci: Enforce DT for signal direction and feedback clock
> mmc: mmci: Enforce mmc capabilities through DT
> mmc: mmci: Enforce DMA configuration through DT
> mmc: mmci: Enforce max frequency configuration through DT
>
> Documentation/devicetree/bindings/mmc/mmci.txt | 54 ++++-
> arch/arm/boot/dts/ste-ccu9540.dts | 6 +-
> arch/arm/boot/dts/ste-href.dtsi | 19 +-
> arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 4 +-
> arch/arm/boot/dts/ste-snowball.dts | 4 +-
> arch/arm/boot/dts/ste-u300.dts | 4 +-
> arch/arm/mach-ux500/Makefile | 3 +-
> arch/arm/mach-ux500/board-mop500-sdi.c | 166 ---------------
> arch/arm/mach-ux500/board-mop500.h | 5 -
> arch/arm/mach-ux500/cpu-db8500.c | 4 -
> drivers/mmc/host/mmci.c | 264 ++++++------------------
> drivers/mmc/host/mmci.h | 14 +-
> include/linux/amba/mmci.h | 42 ----
> 13 files changed, 154 insertions(+), 435 deletions(-)
> delete mode 100644 arch/arm/mach-ux500/board-mop500-sdi.c
>
> --
> 1.7.9.5
>
--
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^ permalink raw reply [flat|nested] 22+ messages in thread