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From: Puranjay Mohan <p-mohan@ti.com>
To: <linux-kernel@vger.kernel.org>
Cc: nm@ti.com, devicetree@vger.kernel.org, grygorii.strashko@ti.com,
	vigneshr@ti.com, mathieu.poirier@linaro.org, kishon@ti.com,
	linux-remoteproc@vger.kernel.org, bjorn.andersson@linaro.org,
	rogerq@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	ssantosh@kernel.org, p-mohan@ti.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 6/6] soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX
Date: Mon, 18 Apr 2022 18:00:04 +0530	[thread overview]
Message-ID: <20220418123004.9332-7-p-mohan@ti.com> (raw)
In-Reply-To: <20220418123004.9332-1-p-mohan@ti.com>

From: Tero Kristo <t-kristo@ti.com>

Add two new helper functions pruss_cfg_get_gpmux() & pruss_cfg_set_gpmux()
to get and set the GP MUX mode for programming the PRUSS internal wrapper
mux functionality as needed by usecases.

Co-developed-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
---
 include/linux/pruss_driver.h | 44 ++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/include/linux/pruss_driver.h b/include/linux/pruss_driver.h
index e2d5477225c6..3312281ef4c1 100644
--- a/include/linux/pruss_driver.h
+++ b/include/linux/pruss_driver.h
@@ -35,4 +35,48 @@ struct pruss {
 	struct clk *iep_clk_mux;
 };
 
+/**
+ * pruss_cfg_get_gpmux() - get the current GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: pointer to store the current mux value into
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_get_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 *mux)
+{
+	int ret = 0;
+	u32 val;
+
+	if (pru_id < 0 || pru_id >= PRUSS_NUM_PRUS)
+		return -EINVAL;
+
+	ret = pruss_cfg_read(pruss, PRUSS_CFG_GPCFG(pru_id), &val);
+	if (!ret)
+		*mux = (u8)((val & PRUSS_GPCFG_PRU_MUX_SEL_MASK) >>
+			    PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+	return ret;
+}
+
+/**
+ * pruss_cfg_set_gpmux() - set the GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: new mux value for PRU
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_set_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 mux)
+{
+	if (mux >= PRUSS_GP_MUX_SEL_MAX ||
+	    pru_id < 0 || pru_id >= PRUSS_NUM_PRUS)
+		return -EINVAL;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id),
+				PRUSS_GPCFG_PRU_MUX_SEL_MASK,
+				(u32)mux << PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+}
+
 #endif	/* _PRUSS_DRIVER_H_ */
-- 
2.17.1


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WARNING: multiple messages have this Message-ID (diff)
From: Puranjay Mohan <p-mohan@ti.com>
To: <linux-kernel@vger.kernel.org>
Cc: <bjorn.andersson@linaro.org>, <mathieu.poirier@linaro.org>,
	<krzysztof.kozlowski+dt@linaro.org>,
	<linux-remoteproc@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<nm@ti.com>, <ssantosh@kernel.org>, <s-anna@ti.com>,
	<p-mohan@ti.com>, <linux-arm-kernel@lists.infradead.org>,
	<rogerq@kernel.org>, <grygorii.strashko@ti.com>,
	<vigneshr@ti.com>, <kishon@ti.com>
Subject: [PATCH v2 6/6] soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX
Date: Mon, 18 Apr 2022 18:00:04 +0530	[thread overview]
Message-ID: <20220418123004.9332-7-p-mohan@ti.com> (raw)
In-Reply-To: <20220418123004.9332-1-p-mohan@ti.com>

From: Tero Kristo <t-kristo@ti.com>

Add two new helper functions pruss_cfg_get_gpmux() & pruss_cfg_set_gpmux()
to get and set the GP MUX mode for programming the PRUSS internal wrapper
mux functionality as needed by usecases.

Co-developed-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
---
 include/linux/pruss_driver.h | 44 ++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/include/linux/pruss_driver.h b/include/linux/pruss_driver.h
index e2d5477225c6..3312281ef4c1 100644
--- a/include/linux/pruss_driver.h
+++ b/include/linux/pruss_driver.h
@@ -35,4 +35,48 @@ struct pruss {
 	struct clk *iep_clk_mux;
 };
 
+/**
+ * pruss_cfg_get_gpmux() - get the current GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: pointer to store the current mux value into
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_get_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 *mux)
+{
+	int ret = 0;
+	u32 val;
+
+	if (pru_id < 0 || pru_id >= PRUSS_NUM_PRUS)
+		return -EINVAL;
+
+	ret = pruss_cfg_read(pruss, PRUSS_CFG_GPCFG(pru_id), &val);
+	if (!ret)
+		*mux = (u8)((val & PRUSS_GPCFG_PRU_MUX_SEL_MASK) >>
+			    PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+	return ret;
+}
+
+/**
+ * pruss_cfg_set_gpmux() - set the GPMUX value for a PRU device
+ * @pruss: pruss instance
+ * @pru_id: PRU identifier (0-1)
+ * @mux: new mux value for PRU
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+static inline int pruss_cfg_set_gpmux(struct pruss *pruss,
+				      enum pruss_pru_id pru_id, u8 mux)
+{
+	if (mux >= PRUSS_GP_MUX_SEL_MAX ||
+	    pru_id < 0 || pru_id >= PRUSS_NUM_PRUS)
+		return -EINVAL;
+
+	return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id),
+				PRUSS_GPCFG_PRU_MUX_SEL_MASK,
+				(u32)mux << PRUSS_GPCFG_PRU_MUX_SEL_SHIFT);
+}
+
 #endif	/* _PRUSS_DRIVER_H_ */
-- 
2.17.1


  parent reply	other threads:[~2022-04-18 12:33 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-18 12:29 [PATCH v2 0/6] Introduce PRU platform consumer API Puranjay Mohan
2022-04-18 12:29 ` Puranjay Mohan
2022-04-18 12:29 ` [PATCH v2 1/6] soc: ti: pruss: Add pruss_get()/put() API Puranjay Mohan
2022-04-18 12:29   ` Puranjay Mohan
2022-04-18 12:30 ` [PATCH v2 2/6] soc: ti: pruss: Add pruss_{request, release}_mem_region() API Puranjay Mohan
2022-04-18 12:30   ` [PATCH v2 2/6] soc: ti: pruss: Add pruss_{request,release}_mem_region() API Puranjay Mohan
2022-04-18 12:30 ` [PATCH v2 3/6] soc: ti: pruss: Add pruss_cfg_read()/update() API Puranjay Mohan
2022-04-18 12:30   ` Puranjay Mohan
2022-04-18 12:30 ` [PATCH v2 4/6] soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR Puranjay Mohan
2022-04-18 12:30   ` Puranjay Mohan
2022-04-18 12:30 ` [PATCH v2 5/6] soc: ti: pruss: Add helper function to enable OCP master ports Puranjay Mohan
2022-04-18 12:30   ` Puranjay Mohan
2022-04-21  6:51   ` Tony Lindgren
2022-04-21  6:51     ` Tony Lindgren
2022-04-18 12:30 ` Puranjay Mohan [this message]
2022-04-18 12:30   ` [PATCH v2 6/6] soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX Puranjay Mohan
2022-09-12 14:20   ` Romain Naour
2022-09-12 14:20     ` Romain Naour
2022-09-14 13:15     ` Roger Quadros
2022-09-14 13:15       ` Roger Quadros
2022-09-15  8:27       ` Romain Naour
2022-09-15  8:27         ` Romain Naour

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