From: Alok Chauhan <alokc@codeaurora.org>
To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
Alok Chauhan <alokc@codeaurora.org>,
Karthikeyan Ramasubramanian <kramasub@codeaurora.org>,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: andy.gross@linaro.org, david.brown@linaro.org,
georgi.djakov@linaro.org, dianders@chromium.org,
swboyd@chromium.org, bjorn.andersson@linaro.org
Subject: [PATCH 3/6] i2c: i2c-qcom-geni: Add interconnect support
Date: Mon, 21 Jan 2019 16:51:40 +0530 [thread overview]
Message-ID: <1548069703-26595-4-git-send-email-alokc@codeaurora.org> (raw)
In-Reply-To: <1548069703-26595-1-git-send-email-alokc@codeaurora.org>
Get the interconnect paths for I2C based Serial Engine device
and vote accordingly based on maximum supported I2C frequency.
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
---
drivers/i2c/busses/i2c-qcom-geni.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index db075bc..e8fe63a 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -14,6 +14,7 @@
#include <linux/pm_runtime.h>
#include <linux/qcom-geni-se.h>
#include <linux/spinlock.h>
+#include <linux/interconnect.h>
#define SE_I2C_TX_TRANS_LEN 0x26c
#define SE_I2C_RX_TRANS_LEN 0x270
@@ -508,6 +509,15 @@ static int geni_i2c_probe(struct platform_device *pdev)
return ret;
}
+ /* Set the bus quota to a reasonable value */
+ gi2c->se.avg_bw = Bps_to_icc(1000);
+ gi2c->se.peak_bw = Bps_to_icc(76800000);
+ ret = geni_interconnect_init(&gi2c->se);
+ if (ret) {
+ dev_err(&pdev->dev, "interconnect_init failed %d\n", ret);
+ return ret;
+ }
+
ret = device_property_read_u32(&pdev->dev, "clock-frequency",
&gi2c->clk_freq_out);
if (ret) {
@@ -611,6 +621,8 @@ static int __maybe_unused geni_i2c_runtime_suspend(struct device *dev)
gi2c->suspended = 1;
}
+ geni_icc_update_bw(&gi2c->se, false);
+
return 0;
}
@@ -619,6 +631,7 @@ static int __maybe_unused geni_i2c_runtime_resume(struct device *dev)
int ret;
struct geni_i2c_dev *gi2c = dev_get_drvdata(dev);
+ geni_icc_update_bw(&gi2c->se, true);
ret = geni_se_resources_on(&gi2c->se);
if (ret)
return ret;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2019-01-21 11:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-21 11:21 [PATCH 0/6] Add interconnect support for GENI QUPs Alok Chauhan
2019-01-21 11:21 ` [PATCH 1/6] dt-bindings: soc: qcom: Add interconnect binding for GENI QUP Alok Chauhan
2019-01-22 6:43 ` alokc
2019-01-21 11:21 ` [PATCH 2/6] soc: qcom: Add wrapper to support for Interconnect path Alok Chauhan
2019-01-21 11:21 ` Alok Chauhan [this message]
2019-01-22 6:54 ` [PATCH 3/6] i2c: i2c-qcom-geni: Add interconnect support alokc
2019-01-21 11:21 ` [PATCH 4/6] spi: spi-geni-qcom: " Alok Chauhan
2019-01-21 12:43 ` Mark Brown
2019-01-22 6:21 ` alokc
2019-01-21 11:21 ` [PATCH 5/6] tty: serial: qcom_geni_serial: " Alok Chauhan
2019-01-21 11:21 ` [PATCH 6/6] arm64: dts: sdm845: Add interconnect for GENI QUP Alok Chauhan
2019-01-22 6:33 [PATCH 0/6] Add interconnect support for GENI QUPs Alok Chauhan
2019-01-22 6:33 ` [PATCH 3/6] i2c: i2c-qcom-geni: Add interconnect support Alok Chauhan
2019-01-22 9:07 ` Wolfram Sang
2019-01-22 9:13 ` Peter Rosin
2019-01-23 6:51 ` alokc
2019-01-24 1:19 ` Evan Green
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=1548069703-26595-4-git-send-email-alokc@codeaurora.org \
--to=alokc@codeaurora.org \
--cc=andy.gross@linaro.org \
--cc=bjorn.andersson@linaro.org \
--cc=david.brown@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=dianders@chromium.org \
--cc=georgi.djakov@linaro.org \
--cc=kramasub@codeaurora.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=swboyd@chromium.org \
/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).