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
next prev parent reply other threads:[~2019-01-22 6:33 UTC|newest]
Thread overview: 37+ 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
2020-02-19 18:09 ` 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
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