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core/linux-armv5: add patches

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This commit is contained in:
Kevin Mihelich 2014-04-06 18:33:37 +00:00
parent 8a51b6f109
commit 1c27a373f3
4 changed files with 271 additions and 0 deletions
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83
core/linux-armv5/0001-Revert-mmc-mxs-use-mmc_of_parse-to-parse-devicetree-.patch Normal file
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@ -0,0 +1,83 @@
From 8ffdb635b9440b1cc33e2b916709aa4bdb3bdad5 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Tue, 1 Apr 2014 16:55:30 -0500
Subject: [PATCH 1/4] Revert "mmc: mxs: use mmc_of_parse to parse devicetree
properties"
This reverts commit d1a1dfb2f5dad3fbcea71b95791d525f4775cff5.
---
drivers/mmc/host/mxs-mmc.c | 37 ++++++++++++++++++++++++++-----------
1 file changed, 26 insertions(+), 11 deletions(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 073e871..13016e2 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -76,11 +76,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
{
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- int present, ret;
-
- ret = mmc_gpio_get_cd(mmc);
- if (ret >= 0)
- return ret;
+ int present;
present = !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT);
@@ -568,12 +564,15 @@ static int mxs_mmc_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id =
of_match_device(mxs_mmc_dt_ids, &pdev->dev);
+ struct device_node *np = pdev->dev.of_node;
struct mxs_mmc_host *host;
struct mmc_host *mmc;
struct resource *iores;
- int ret = 0, irq_err;
+ int ret = 0, irq_err, gpio;
struct regulator *reg_vmmc;
+ enum of_gpio_flags flags;
struct mxs_ssp *ssp;
+ u32 bus_width = 0;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq_err = platform_get_irq(pdev, 0);
@@ -634,13 +633,29 @@ static int mxs_mmc_probe(struct platform_device *pdev)
mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED |
MMC_CAP_SDIO_IRQ | MMC_CAP_NEEDS_POLL;
- mmc->f_min = 400000;
- mmc->f_max = 288000000;
+ of_property_read_u32(np, "bus-width", &bus_width);
+ if (bus_width == 4)
+ mmc->caps |= MMC_CAP_4_BIT_DATA;
+ else if (bus_width == 8)
+ mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
+ if (of_property_read_bool(np, "broken-cd"))
+ mmc->caps |= MMC_CAP_NEEDS_POLL;
+ if (of_property_read_bool(np, "non-removable"))
+ mmc->caps |= MMC_CAP_NONREMOVABLE;
+ gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
+ if (gpio_is_valid(gpio)) {
+ ret = mmc_gpio_request_ro(mmc, gpio);
+ if (ret)
+ goto out_clk_disable;
+ if (!(flags & OF_GPIO_ACTIVE_LOW))
+ mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
+ }
- ret = mmc_of_parse(mmc);
- if (ret)
- goto out_clk_disable;
+ if (of_property_read_bool(np, "cd-inverted"))
+ mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
+ mmc->f_min = 400000;
+ mmc->f_max = 288000000;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
mmc->max_segs = 52;
--
1.9.1

89
core/linux-armv5/0002-Revert-mmc-mxs-use-mmc_gpio_get_ro-for-detecting-rea.patch Normal file
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@ -0,0 +1,89 @@
From 3c423c1a7be6c502a07ce3dee4e7f7d49a49cd4d Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Tue, 1 Apr 2014 16:55:42 -0500
Subject: [PATCH 2/4] Revert "mmc: mxs: use mmc_gpio_get_ro for detecting
read-only status"
This reverts commit abd37cccd47fe950e893578da12e7dc0604078de.
---
drivers/mmc/host/mxs-mmc.c | 34 +++++++++++++++++++++++-----------
1 file changed, 23 insertions(+), 11 deletions(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 13016e2..3dd2f4c 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -38,7 +38,6 @@
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/sdio.h>
-#include <linux/mmc/slot-gpio.h>
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/module.h>
@@ -70,8 +69,26 @@ struct mxs_mmc_host {
unsigned char bus_width;
spinlock_t lock;
int sdio_irq_en;
+ int wp_gpio;
+ bool wp_inverted;
};
+static int mxs_mmc_get_ro(struct mmc_host *mmc)
+{
+ struct mxs_mmc_host *host = mmc_priv(mmc);
+ int ret;
+
+ if (!gpio_is_valid(host->wp_gpio))
+ return -EINVAL;
+
+ ret = gpio_get_value(host->wp_gpio);
+
+ if (host->wp_inverted)
+ ret = !ret;
+
+ return ret;
+}
+
static int mxs_mmc_get_cd(struct mmc_host *mmc)
{
struct mxs_mmc_host *host = mmc_priv(mmc);
@@ -534,7 +551,7 @@ static void mxs_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
static const struct mmc_host_ops mxs_mmc_ops = {
.request = mxs_mmc_request,
- .get_ro = mmc_gpio_get_ro,
+ .get_ro = mxs_mmc_get_ro,
.get_cd = mxs_mmc_get_cd,
.set_ios = mxs_mmc_set_ios,
.enable_sdio_irq = mxs_mmc_enable_sdio_irq,
@@ -568,7 +585,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
struct mxs_mmc_host *host;
struct mmc_host *mmc;
struct resource *iores;
- int ret = 0, irq_err, gpio;
+ int ret = 0, irq_err;
struct regulator *reg_vmmc;
enum of_gpio_flags flags;
struct mxs_ssp *ssp;
@@ -642,14 +659,9 @@ static int mxs_mmc_probe(struct platform_device *pdev)
mmc->caps |= MMC_CAP_NEEDS_POLL;
if (of_property_read_bool(np, "non-removable"))
mmc->caps |= MMC_CAP_NONREMOVABLE;
- gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
- if (gpio_is_valid(gpio)) {
- ret = mmc_gpio_request_ro(mmc, gpio);
- if (ret)
- goto out_clk_disable;
- if (!(flags & OF_GPIO_ACTIVE_LOW))
- mmc->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
- }
+ host->wp_gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
+ if (flags & OF_GPIO_ACTIVE_LOW)
+ host->wp_inverted = 1;
if (of_property_read_bool(np, "cd-inverted"))
mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
--
1.9.1

53
core/linux-armv5/0003-Revert-mmc-mxs-use-standard-flag-for-cd-inverted.patch Normal file
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@ -0,0 +1,53 @@
From 693ae32da4dd06e3f98bf1ff2595e1d461ad1402 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Tue, 1 Apr 2014 16:55:53 -0500
Subject: [PATCH 3/4] Revert "mmc: mxs: use standard flag for cd inverted"
This reverts commit 6c3331d3ace7989688fa59f541f5e722e44ac373.
---
drivers/mmc/host/mxs-mmc.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 3dd2f4c..02210ce 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -71,6 +71,7 @@ struct mxs_mmc_host {
int sdio_irq_en;
int wp_gpio;
bool wp_inverted;
+ bool cd_inverted;
};
static int mxs_mmc_get_ro(struct mmc_host *mmc)
@@ -93,15 +94,9 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
{
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- int present;
- present = !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
- BM_SSP_STATUS_CARD_DETECT);
-
- if (mmc->caps2 & MMC_CAP2_CD_ACTIVE_HIGH)
- present = !present;
-
- return present;
+ return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
+ BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
}
static int mxs_mmc_reset(struct mxs_mmc_host *host)
@@ -663,8 +658,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
if (flags & OF_GPIO_ACTIVE_LOW)
host->wp_inverted = 1;
- if (of_property_read_bool(np, "cd-inverted"))
- mmc->caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
+ host->cd_inverted = of_property_read_bool(np, "cd-inverted");
mmc->f_min = 400000;
mmc->f_max = 288000000;
--
1.9.1

46
core/linux-armv5/0004-Revert-mmc-mxs-use-standard-flag-for-broken-card-det.patch Normal file
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@ -0,0 +1,46 @@
From 0e57cce7c9572286f421b8cbea899d5a917fdea8 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Tue, 1 Apr 2014 16:56:05 -0500
Subject: [PATCH 4/4] Revert "mmc: mxs: use standard flag for broken card
detection"
This reverts commit a91fe279ae750d67d65039bb4ac2cc6ef51e7a2a.
---
drivers/mmc/host/mxs-mmc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 02210ce..374fca7 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -72,6 +72,7 @@ struct mxs_mmc_host {
int wp_gpio;
bool wp_inverted;
bool cd_inverted;
+ bool broken_cd;
};
static int mxs_mmc_get_ro(struct mmc_host *mmc)
@@ -95,7 +96,8 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc)
struct mxs_mmc_host *host = mmc_priv(mmc);
struct mxs_ssp *ssp = &host->ssp;
- return !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
+ return host->broken_cd ||
+ !(readl(ssp->base + HW_SSP_STATUS(ssp)) &
BM_SSP_STATUS_CARD_DETECT) ^ host->cd_inverted;
}
@@ -650,8 +652,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
mmc->caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA;
- if (of_property_read_bool(np, "broken-cd"))
- mmc->caps |= MMC_CAP_NEEDS_POLL;
+ host->broken_cd = of_property_read_bool(np, "broken-cd");
if (of_property_read_bool(np, "non-removable"))
mmc->caps |= MMC_CAP_NONREMOVABLE;
host->wp_gpio = of_get_named_gpio_flags(np, "wp-gpios", 0, &flags);
--
1.9.1