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>, <robh@kernel.org>
Subject: [PATCH v5 6/6] remoteproc: pru: add support for configuring GPMUX based on client setup
Date: Tue, 7 Jun 2022 10:26:50 +0530 [thread overview]
Message-ID: <20220607045650.4999-7-p-mohan@ti.com> (raw)
In-Reply-To: <20220607045650.4999-1-p-mohan@ti.com>
From: Tero Kristo <t-kristo@ti.com>
Client device node property ti,pruss-gp-mux-sel can now be used to
configure the GPMUX config value for PRU.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[s-anna@ti.com: simplify the pru id usage]
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Puranjay Mohan <p-mohan@ti.com>
---
V4->v5
* This patch was included in v4 and had some checkpatch errors that have
been resolved in v5
---
drivers/remoteproc/pru_rproc.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
index 2977eb50631b..f2c6c55f0f20 100644
--- a/drivers/remoteproc/pru_rproc.c
+++ b/drivers/remoteproc/pru_rproc.c
@@ -123,6 +123,7 @@ struct pru_private_data {
* @dbg_single_step: debug state variable to set PRU into single step mode
* @dbg_continuous: debug state variable to restore PRU execution mode
* @evt_count: number of mapped events
+ * @gpmux_save: saved value for gpmux config
*/
struct pru_rproc {
int id;
@@ -141,6 +142,7 @@ struct pru_rproc {
u32 dbg_single_step;
u32 dbg_continuous;
u8 evt_count;
+ u8 gpmux_save;
};
static inline u32 pru_control_read_reg(struct pru_rproc *pru, unsigned int reg)
@@ -250,6 +252,7 @@ struct rproc *pru_rproc_get(struct device_node *np, int index,
struct device *dev;
const char *fw_name;
int ret;
+ u32 mux;
try_module_get(THIS_MODULE);
@@ -273,6 +276,22 @@ struct rproc *pru_rproc_get(struct device_node *np, int index,
mutex_unlock(&pru->lock);
+ ret = pruss_cfg_get_gpmux(pru->pruss, pru->id, &pru->gpmux_save);
+ if (ret) {
+ dev_err(dev, "failed to get cfg gpmux: %d\n", ret);
+ goto err;
+ }
+
+ ret = of_property_read_u32_index(np, "ti,pruss-gp-mux-sel", index,
+ &mux);
+ if (!ret) {
+ ret = pruss_cfg_set_gpmux(pru->pruss, pru->id, mux);
+ if (ret) {
+ dev_err(dev, "failed to set cfg gpmux: %d\n", ret);
+ goto err;
+ }
+ }
+
if (pru_id)
*pru_id = pru->id;
@@ -310,6 +329,7 @@ void pru_rproc_put(struct rproc *rproc)
pru = rproc->priv;
+ pruss_cfg_set_gpmux(pru->pruss, pru->id, pru->gpmux_save);
pru_rproc_set_firmware(rproc, NULL);
mutex_lock(&pru->lock);
--
2.17.1
next prev parent reply other threads:[~2022-06-07 4:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 4:56 [PATCH v5 0/6] Introduce PRU remoteproc consumer API Puranjay Mohan
2022-06-07 4:56 ` [PATCH v5 1/6] dt-bindings: remoteproc: Add PRU consumer bindings Puranjay Mohan
2022-07-19 16:17 ` Mathieu Poirier
2022-06-07 4:56 ` [PATCH v5 2/6] remoteproc: pru: Add APIs to get and put the PRU cores Puranjay Mohan
2022-07-12 17:59 ` Mathieu Poirier
2022-07-14 17:20 ` Mathieu Poirier
2022-07-15 6:22 ` Kishon Vijay Abraham I
2022-09-02 9:39 ` Md Danish Anwar
2022-09-06 19:28 ` Mathieu Poirier
2022-09-07 9:24 ` Md Danish Anwar
2022-09-12 13:24 ` Romain Naour
2022-09-13 11:40 ` Md Danish Anwar
2022-09-19 20:45 ` Mathieu Poirier
2022-09-26 10:23 ` [EXTERNAL] " Md Danish Anwar
2022-09-29 23:02 ` Mathieu Poirier
2022-06-07 4:56 ` [PATCH v5 3/6] remoteproc: pru: Make sysfs entries read-only for PRU client driven boots Puranjay Mohan
2022-06-07 4:56 ` [PATCH v5 4/6] remoteproc: pru: Add pru_rproc_set_ctable() function Puranjay Mohan
2022-07-19 15:53 ` Mathieu Poirier
2022-06-07 4:56 ` [PATCH v5 5/6] remoteproc: pru: Configure firmware based on client setup Puranjay Mohan
2022-06-07 4:56 ` Puranjay Mohan [this message]
2022-07-19 16:16 ` [PATCH v5 6/6] remoteproc: pru: add support for configuring GPMUX " Mathieu Poirier
2022-09-05 9:11 ` Md Danish Anwar
2022-09-06 19:29 ` Mathieu Poirier
2022-09-07 9:14 ` [EXTERNAL] " Md Danish Anwar
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