From: Ludovic Barre <ludovic.Barre@st.com>
To: Ulf Hansson <ulf.hansson@linaro.org>, Rob Herring <robh+dt@kernel.org>
Cc: <srinivas.kandagatla@linaro.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-mmc@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
Ludovic Barre <ludovic.barre@st.com>
Subject: [PATCH V6 19/23] mmc: mmci: add optional reset property
Date: Mon, 8 Oct 2018 14:08:51 +0200 [thread overview]
Message-ID: <1539000535-13261-20-git-send-email-ludovic.Barre@st.com> (raw)
In-Reply-To: <1539000535-13261-1-git-send-email-ludovic.Barre@st.com>
From: Ludovic Barre <ludovic.barre@st.com>
This patch adds a optional reset management.
STM32 sdmmc variant needs to reset hardware block
during the power cycle procedure (for re-initialization).
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
drivers/mmc/host/mmci.c | 7 +++++++
drivers/mmc/host/mmci.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7607599..d636a0e 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -36,6 +36,7 @@
#include <linux/pm_runtime.h>
#include <linux/types.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/reset.h>
#include <asm/div64.h>
#include <asm/io.h>
@@ -1882,6 +1883,12 @@ static int mmci_probe(struct amba_device *dev,
dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
+ host->rst = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
+ if (IS_ERR(host->rst)) {
+ ret = PTR_ERR(host->rst);
+ goto clk_disable;
+ }
+
/* Get regulators and the supported OCR mask */
ret = mmc_regulator_get_supply(mmc);
if (ret)
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index cdcadd2..8ecb1ee 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -318,6 +318,8 @@ struct mmci_host {
struct clk *clk;
u8 singleirq:1;
+ struct reset_control *rst;
+
spinlock_t lock;
unsigned int mclk;
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Ludovic Barre <ludovic.Barre@st.com>
To: Ulf Hansson <ulf.hansson@linaro.org>, Rob Herring <robh+dt@kernel.org>
Cc: srinivas.kandagatla@linaro.org,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-mmc@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
Ludovic Barre <ludovic.barre@st.com>
Subject: [PATCH V6 19/23] mmc: mmci: add optional reset property
Date: Mon, 8 Oct 2018 14:08:51 +0200 [thread overview]
Message-ID: <1539000535-13261-20-git-send-email-ludovic.Barre@st.com> (raw)
In-Reply-To: <1539000535-13261-1-git-send-email-ludovic.Barre@st.com>
From: Ludovic Barre <ludovic.barre@st.com>
This patch adds a optional reset management.
STM32 sdmmc variant needs to reset hardware block
during the power cycle procedure (for re-initialization).
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
drivers/mmc/host/mmci.c | 7 +++++++
drivers/mmc/host/mmci.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7607599..d636a0e 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -36,6 +36,7 @@
#include <linux/pm_runtime.h>
#include <linux/types.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/reset.h>
#include <asm/div64.h>
#include <asm/io.h>
@@ -1882,6 +1883,12 @@ static int mmci_probe(struct amba_device *dev,
dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
+ host->rst = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
+ if (IS_ERR(host->rst)) {
+ ret = PTR_ERR(host->rst);
+ goto clk_disable;
+ }
+
/* Get regulators and the supported OCR mask */
ret = mmc_regulator_get_supply(mmc);
if (ret)
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index cdcadd2..8ecb1ee 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -318,6 +318,8 @@ struct mmci_host {
struct clk *clk;
u8 singleirq:1;
+ struct reset_control *rst;
+
spinlock_t lock;
unsigned int mclk;
--
2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: ludovic.Barre@st.com (Ludovic Barre)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V6 19/23] mmc: mmci: add optional reset property
Date: Mon, 8 Oct 2018 14:08:51 +0200 [thread overview]
Message-ID: <1539000535-13261-20-git-send-email-ludovic.Barre@st.com> (raw)
In-Reply-To: <1539000535-13261-1-git-send-email-ludovic.Barre@st.com>
From: Ludovic Barre <ludovic.barre@st.com>
This patch adds a optional reset management.
STM32 sdmmc variant needs to reset hardware block
during the power cycle procedure (for re-initialization).
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
drivers/mmc/host/mmci.c | 7 +++++++
drivers/mmc/host/mmci.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7607599..d636a0e 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -36,6 +36,7 @@
#include <linux/pm_runtime.h>
#include <linux/types.h>
#include <linux/pinctrl/consumer.h>
+#include <linux/reset.h>
#include <asm/div64.h>
#include <asm/io.h>
@@ -1882,6 +1883,12 @@ static int mmci_probe(struct amba_device *dev,
dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
+ host->rst = devm_reset_control_get_optional_exclusive(&dev->dev, NULL);
+ if (IS_ERR(host->rst)) {
+ ret = PTR_ERR(host->rst);
+ goto clk_disable;
+ }
+
/* Get regulators and the supported OCR mask */
ret = mmc_regulator_get_supply(mmc);
if (ret)
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index cdcadd2..8ecb1ee 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -318,6 +318,8 @@ struct mmci_host {
struct clk *clk;
u8 singleirq:1;
+ struct reset_control *rst;
+
spinlock_t lock;
unsigned int mclk;
--
2.7.4
next prev parent reply other threads:[~2018-10-08 12:11 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-08 12:08 [PATCH V6 00/23] mmc: mmci: add sdmmc variant for stm32 Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 01/23] mmc: mmci: create common mmci_dma_setup/release Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 02/23] mmc: mmci: introduce dma_priv pointer to mmci_host Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 03/23] mmc: mmci: merge prepare data functions Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 04/23] mmc: mmci: add prepare/unprepare_data callbacks Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 05/23] mmc: mmci: add get_next_data callback Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 06/23] mmc: mmci: add dma_start callback Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 07/23] mmc: mmci: add dma_finalize callback Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 08/23] mmc: mmci: add dma_error callback Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 09/23] mmc: mmci: add validate_data callback Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 10/23] mmc: mmci: add set_clk/pwrreg callbacks Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 11/23] mmc: mmci: add datactrl block size variant property Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 12/23] mmc: mmci: expand startbiterr to irqmask and error check Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 13/23] mmc: mmci: add variant properties to define cpsm & cmdresp bits Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 14/23] mmc: mmci: add variant property to define dpsm bit Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 15/23] mmc: mmci: add variant property to define irq pio mask Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 16/23] mmc: mmci: add variant property to write datactrl before command Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 17/23] mmc: mmci: add variant property to not read datacnt Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 18/23] dt-bindings: mmci: add optional reset property Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre [this message]
2018-10-08 12:08 ` [PATCH V6 19/23] mmc: " Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 20/23] mmc: mmci: add clock divider for stm32 sdmmc Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 21/23] mmc: mmci: add stm32 sdmmc registers Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 22/23] dt-bindings: mmci: add stm32 sdmmc variant Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` [PATCH V6 23/23] mmc: " Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-08 12:08 ` Ludovic Barre
2018-10-09 7:30 ` [PATCH V6 00/23] mmc: mmci: add sdmmc variant for stm32 Ulf Hansson
2018-10-09 7:30 ` Ulf Hansson
2018-10-09 7:54 ` Ludovic BARRE
2018-10-09 7:54 ` Ludovic BARRE
2018-10-09 7:54 ` Ludovic BARRE
2018-10-09 11:18 ` Ulf Hansson
2018-10-09 11:18 ` Ulf Hansson
2018-10-11 10:33 ` Ulf Hansson
2018-10-11 10:33 ` Ulf Hansson
2018-10-11 12:17 ` Ludovic BARRE
2018-10-11 12:17 ` Ludovic BARRE
2018-10-11 12:17 ` Ludovic BARRE
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