From: Frank Li <Frank.Li@nxp.com>
To: alexandre.belloni@bootlin.com, miquel.raynal@bootlin.com,
conor.culhane@silvaco.com, joe@perches.com,
linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org,
imx@lists.linux.dev
Subject: [PATCH 1/5] i3c: master: svc: enable hotjoin default
Date: Mon, 16 Oct 2023 11:46:28 -0400 [thread overview]
Message-ID: <20231016154632.2851957-2-Frank.Li@nxp.com> (raw)
In-Reply-To: <20231016154632.2851957-1-Frank.Li@nxp.com>
Hotjoin require clock running and enable SLVSTART irq.
Add module parameter 'hotjoin' to disable hotjoin and enable runtime_pm to
save power.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
drivers/i3c/master/svc-i3c-master.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 18bc277edc8a..f0d99b029e5f 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -128,6 +128,9 @@
/* This parameter depends on the implementation and may be tuned */
#define SVC_I3C_FIFO_SIZE 16
+static bool hotjoin = true;
+module_param(hotjoin, bool, S_IRUGO | S_IWUSR);
+
struct svc_i3c_cmd {
u8 addr;
bool rnw;
@@ -1623,8 +1626,12 @@ static int svc_i3c_master_probe(struct platform_device *pdev)
if (ret)
goto rpm_disable;
- pm_runtime_mark_last_busy(&pdev->dev);
- pm_runtime_put_autosuspend(&pdev->dev);
+ if (hotjoin) {
+ svc_i3c_master_enable_interrupts(master, SVC_I3C_MINT_SLVSTART);
+ } else {
+ pm_runtime_mark_last_busy(&pdev->dev);
+ pm_runtime_put_autosuspend(&pdev->dev);
+ }
return 0;
--
2.34.1
--
linux-i3c mailing list
linux-i3c@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-i3c
next prev parent reply other threads:[~2023-10-16 15:47 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-16 15:46 [PATCH 0/5] i3c: master: some improvment for i3c master Frank Li
2023-10-16 15:46 ` Frank Li [this message]
2023-10-17 6:48 ` [PATCH 1/5] i3c: master: svc: enable hotjoin default Joe Perches
2023-10-17 14:04 ` Miquel Raynal
2023-10-17 14:51 ` Frank Li
2023-10-17 22:22 ` Alexandre Belloni
2023-10-16 15:46 ` [PATCH 2/5] i3c: add actual in i3c_priv_xfer Frank Li
2023-10-17 6:10 ` Jarkko Nikula
2023-10-16 15:46 ` [PATCH 3/5] i3c: svc: rename read_len as actual_len Frank Li
2023-10-17 14:07 ` Miquel Raynal
2023-10-17 20:43 ` Frank Li
2023-10-16 15:46 ` [PATCH 4/5] i3c: master: svc return actual transfer data len Frank Li
2023-10-17 8:33 ` Jarkko Nikula
2023-10-18 20:18 ` Frank Li
2023-10-17 14:10 ` Miquel Raynal
2023-10-18 20:26 ` Frank Li
2023-10-16 15:46 ` [PATCH 5/5] i3c: add API i3c_dev_gettstatus_format1() to get target device status Frank Li
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