Re: [PATCH 3/6] i2c: i2c-qcom-geni: Add interconnect support

alokc
2019-01-22T06:54:14Z

Please don't review this patch. I've resend patches after adding all the
mailing list.
Sorry for inconvenience. Please review patches with spi/i2c/uart/kernel
mailing list added.

On 2019-01-21 16:51, Alok Chauhan wrote:
> 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;

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