From: MD Danish Anwar <danishanwar@ti.com>
To: "Andrew F. Davis" <afd@ti.com>, Suman Anna <s-anna@ti.com>,
Roger Quadros <rogerq@kernel.org>,
Vignesh Raghavendra <vigneshr@ti.com>,
MD Danish Anwar <danishanwar@ti.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Bjorn Andersson <andersson@kernel.org>,
Santosh Shilimkar <ssantosh@kernel.org>,
Nishanth Menon <nm@ti.com>
Cc: <linux-remoteproc@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<srk@ti.com>, <devicetree@vger.kernel.org>,
<netdev@vger.kernel.org>
Subject: [PATCH v4 5/5] soc: ti: pruss: Add helper functions to get/set PRUSS_CFG_GPMUX
Date: Mon, 13 Mar 2023 16:41:27 +0530 [thread overview]
Message-ID: <20230313111127.1229187-6-danishanwar@ti.com> (raw)
In-Reply-To: <20230313111127.1229187-1-danishanwar@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>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
---
drivers/soc/ti/pruss.c | 44 ++++++++++++++++++++++++++++++++
include/linux/remoteproc/pruss.h | 12 +++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index 2f04b7922ddb..90f81f4d77fb 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -263,6 +263,50 @@ int pruss_cfg_xfr_enable(struct pruss *pruss, bool enable, u32 mask)
}
EXPORT_SYMBOL_GPL(pruss_cfg_xfr_enable);
+/**
+ * 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
+ */
+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;
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_get_gpmux);
+
+/**
+ * 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
+ */
+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);
+}
+EXPORT_SYMBOL_GPL(pruss_cfg_set_gpmux);
+
static void pruss_of_free_clk_provider(void *data)
{
struct device_node *clk_mux_np = data;
diff --git a/include/linux/remoteproc/pruss.h b/include/linux/remoteproc/pruss.h
index 51a3eedd2be6..4138a9fcc3ad 100644
--- a/include/linux/remoteproc/pruss.h
+++ b/include/linux/remoteproc/pruss.h
@@ -170,6 +170,8 @@ int pruss_cfg_gpimode(struct pruss *pruss, enum pruss_pru_id pru_id,
enum pruss_gpi_mode mode);
int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable);
int pruss_cfg_xfr_enable(struct pruss *pruss, bool enable, u32 mask);
+int pruss_cfg_get_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 *mux);
+int pruss_cfg_set_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 mux);
#else
@@ -210,6 +212,16 @@ static inline int pruss_cfg_xfr_enable(struct pruss *pruss, bool enable, u32 mas
return ERR_PTR(-EOPNOTSUPP);
}
+static inline int pruss_cfg_get_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 *mux)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int pruss_cfg_set_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 mux)
+{
+ return ERR_PTR(-EOPNOTSUPP);
+}
+
#endif /* CONFIG_TI_PRUSS */
#if IS_ENABLED(CONFIG_PRU_REMOTEPROC)
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
prev parent reply other threads:[~2023-03-13 11:13 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-13 11:11 [PATCH v4 0/5] Introduce PRU platform consumer API MD Danish Anwar
2023-03-13 11:11 ` [PATCH v4 1/5] soc: ti: pruss: Add pruss_get()/put() API MD Danish Anwar
2023-03-13 16:19 ` Andrew Davis
2023-03-13 11:11 ` [PATCH v4 2/5] soc: ti: pruss: Add pruss_{request,release}_mem_region() API MD Danish Anwar
2023-03-17 8:56 ` Roger Quadros
2023-03-20 5:11 ` [EXTERNAL] " Md Danish Anwar
2023-03-20 16:18 ` Andrew Davis
2023-03-21 5:23 ` Md Danish Anwar
2023-03-21 9:24 ` Roger Quadros
2023-03-21 9:48 ` [EXTERNAL] " Md Danish Anwar
2023-03-21 10:23 ` Roger Quadros
2023-03-21 10:45 ` Md Danish Anwar
2023-03-13 11:11 ` [PATCH v4 3/5] soc: ti: pruss: Add pruss_cfg_read()/update() API MD Danish Anwar
2023-03-15 12:07 ` Roger Quadros
2023-03-16 11:08 ` [EXTERNAL] " Md Danish Anwar
2023-03-16 11:29 ` Md Danish Anwar
2023-03-16 11:32 ` Roger Quadros
2023-03-16 11:34 ` [EXTERNAL] " Md Danish Anwar
2023-03-13 11:11 ` [PATCH v4 4/5] soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR MD Danish Anwar
2023-03-15 12:22 ` Roger Quadros
2023-03-16 11:05 ` [EXTERNAL] " Md Danish Anwar
2023-03-16 11:36 ` Roger Quadros
2023-03-16 11:44 ` Md Danish Anwar
2023-03-16 12:19 ` Roger Quadros
2023-03-16 13:11 ` [EXTERNAL] " Md Danish Anwar
2023-03-16 14:04 ` Roger Quadros
2023-03-17 5:02 ` [EXTERNAL] " Md Danish Anwar
2023-03-17 8:31 ` Roger Quadros
2023-03-17 8:55 ` [EXTERNAL] " Md Danish Anwar
2023-03-13 11:11 ` MD Danish Anwar [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230313111127.1229187-6-danishanwar@ti.com \
--to=danishanwar@ti.com \
--cc=afd@ti.com \
--cc=andersson@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=mathieu.poirier@linaro.org \
--cc=netdev@vger.kernel.org \
--cc=nm@ti.com \
--cc=rogerq@kernel.org \
--cc=s-anna@ti.com \
--cc=srk@ti.com \
--cc=ssantosh@kernel.org \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).