All of lore.kernel.org
 help / color / mirror / Atom feed
From: Alok Chauhan <alokc@codeaurora.org>
To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-spi@vger.kernel.org, linux-serial@vger.kernel.org,
	Mark Brown <broonie@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,
	Alok Chauhan <alokc@codeaurora.org>
Subject: [PATCH 4/6] spi: spi-geni-qcom: Add interconnect support
Date: Tue, 22 Jan 2019 12:03:34 +0530	[thread overview]
Message-ID: <1548138816-1149-5-git-send-email-alokc@codeaurora.org> (raw)
In-Reply-To: <1548138816-1149-1-git-send-email-alokc@codeaurora.org>

Get the interconnect paths for SPI based Serial Engine device
and vote accordingly based on maximum supported SPI frequency.

Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
---
 drivers/spi/spi-geni-qcom.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index fdb7cb88..7bbbe9d 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -12,6 +12,7 @@
 #include <linux/qcom-geni-se.h>
 #include <linux/spi/spi.h>
 #include <linux/spinlock.h>
+#include <linux/interconnect.h>
 
 /* SPI SE specific registers and respective register fields */
 #define SE_SPI_CPHA		0x224
@@ -589,6 +590,15 @@ static int spi_geni_probe(struct platform_device *pdev)
 	spin_lock_init(&mas->lock);
 	pm_runtime_enable(&pdev->dev);
 
+	/* Set the bus quota to a reasonable value */
+	mas->se.avg_bw = Bps_to_icc(2500);
+	mas->se.peak_bw = Bps_to_icc(200000000);
+	ret = geni_interconnect_init(&mas->se);
+	if (ret) {
+		dev_err(&pdev->dev, "interconnect_init failed %d\n", ret);
+		return ret;
+	}
+
 	ret = spi_geni_init(mas);
 	if (ret)
 		goto spi_geni_probe_runtime_disable;
@@ -628,8 +638,15 @@ static int __maybe_unused spi_geni_runtime_suspend(struct device *dev)
 {
 	struct spi_master *spi = dev_get_drvdata(dev);
 	struct spi_geni_master *mas = spi_master_get_devdata(spi);
+	int ret;
 
-	return geni_se_resources_off(&mas->se);
+	ret = geni_se_resources_off(&mas->se);
+	if (ret)
+		return ret;
+
+	geni_icc_update_bw(&mas->se, false);
+
+	return 0;
 }
 
 static int __maybe_unused spi_geni_runtime_resume(struct device *dev)
@@ -637,6 +654,7 @@ static int __maybe_unused spi_geni_runtime_resume(struct device *dev)
 	struct spi_master *spi = dev_get_drvdata(dev);
 	struct spi_geni_master *mas = spi_master_get_devdata(spi);
 
+	geni_icc_update_bw(&mas->se, true);
 	return geni_se_resources_on(&mas->se);
 }
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

  parent reply	other threads:[~2019-01-22  6:33 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-22  6:33 [PATCH 0/6] Add interconnect support for GENI QUPs Alok Chauhan
2019-01-22  6:33 ` [PATCH 1/6] dt-bindings: soc: qcom: Add interconnect binding for GENI QUP Alok Chauhan
2019-01-23  6:48   ` alokc
2019-01-23 17:07   ` Bjorn Andersson
2019-01-23 18:41     ` Georgi Djakov
2019-02-23  0:26       ` Rob Herring
2019-02-25 17:39         ` Georgi Djakov
2019-01-23 18:35   ` Georgi Djakov
2019-01-30 22:29     ` alokc
2019-01-24  1:10   ` Evan Green
2019-01-30 22:27     ` alokc
2019-01-22  6:33 ` [PATCH 2/6] soc: qcom: Add wrapper to support for Interconnect path Alok Chauhan
2019-01-23  7:02   ` alokc
2019-01-23 18:14   ` Bjorn Andersson
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
2019-01-22  6:33 ` Alok Chauhan [this message]
2019-01-22 20:29   ` [PATCH 4/6] spi: spi-geni-qcom: " Mark Brown
2019-01-23  7:15     ` alokc
2019-01-23 10:58       ` Mark Brown
2019-01-23 16:04   ` Mark Brown
2019-01-24  1:20   ` Evan Green
2019-01-22  6:33 ` [PATCH 5/6] tty: serial: qcom_geni_serial: " Alok Chauhan
2019-01-23  6:53   ` alokc
2019-01-22  6:33 ` [PATCH 6/6] arm64: dts: sdm845: Add interconnect for GENI QUP Alok Chauhan
2019-01-23  6:54   ` alokc
2019-01-23  6:45 ` [PATCH 0/6] Add interconnect support for GENI QUPs alokc
  -- strict thread matches above, loose matches on Subject: below --
2020-02-17 13:29 [PATCH 0/6] Add interconnect support to UART, I2C, SPI and QSPI Akash Asthana
2020-02-17 13:30 ` [PATCH 4/6] spi: spi-geni-qcom: Add interconnect support Akash Asthana
2020-02-17 16:31   ` Mark Brown
2020-02-17 16:31     ` Mark Brown
2020-02-19 18:09   ` Matthias Kaehlcke
2020-02-21 18:55     ` Matthias Kaehlcke
2020-02-21 18:55       ` Matthias Kaehlcke
2019-01-21 11:21 [PATCH 0/6] Add interconnect support for GENI QUPs Alok Chauhan
2019-01-21 11:21 ` [PATCH 4/6] spi: spi-geni-qcom: Add interconnect support Alok Chauhan
2019-01-21 12:43   ` Mark Brown
2019-01-22  6:21     ` alokc

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=1548138816-1149-5-git-send-email-alokc@codeaurora.org \
    --to=alokc@codeaurora.org \
    --cc=andy.gross@linaro.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=broonie@kernel.org \
    --cc=david.brown@linaro.org \
    --cc=devicetree@vger.kernel.org \
    --cc=dianders@chromium.org \
    --cc=georgi.djakov@linaro.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-i2c@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-serial@vger.kernel.org \
    --cc=linux-spi@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.