| Message ID | 20221114-narmstrong-sm8550-upstream-i2c-master-hub-v1-6-64449106a148@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | soc: qcom: add support for the I2C Master Hub | expand |
On 16/11/2022 11:21, Neil Armstrong wrote: > The I2C Master Hub is a stripped down version of the GENI Serial Engine > QUP Wrapper Controller but only supporting I2C serial engines without > DMA support. > > This adds the I2C Master Hub serial engine compatible along the > specific requirements in a new desc struct passed throug the device > match data. > > Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Konrad > drivers/i2c/busses/i2c-qcom-geni.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c > index 75dd0718c5a1..bfe75038bc14 100644 > --- a/drivers/i2c/busses/i2c-qcom-geni.c > +++ b/drivers/i2c/busses/i2c-qcom-geni.c > @@ -1026,8 +1026,16 @@ static const struct dev_pm_ops geni_i2c_pm_ops = { > NULL) > }; > > +const struct geni_i2c_desc i2c_master_hub = { > + .has_core_clk = true, > + .icc_ddr = NULL, > + .no_dma_support = true, > + .tx_fifo_depth = 16, > +}; > + > static const struct of_device_id geni_i2c_dt_match[] = { > { .compatible = "qcom,geni-i2c" }, > + { .compatible = "qcom,geni-i2c-master-hub", .data = &i2c_master_hub }, > {} > }; > MODULE_DEVICE_TABLE(of, geni_i2c_dt_match); >
diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c index 75dd0718c5a1..bfe75038bc14 100644 --- a/drivers/i2c/busses/i2c-qcom-geni.c +++ b/drivers/i2c/busses/i2c-qcom-geni.c @@ -1026,8 +1026,16 @@ static const struct dev_pm_ops geni_i2c_pm_ops = { NULL) }; +const struct geni_i2c_desc i2c_master_hub = { + .has_core_clk = true, + .icc_ddr = NULL, + .no_dma_support = true, + .tx_fifo_depth = 16, +}; + static const struct of_device_id geni_i2c_dt_match[] = { { .compatible = "qcom,geni-i2c" }, + { .compatible = "qcom,geni-i2c-master-hub", .data = &i2c_master_hub }, {} }; MODULE_DEVICE_TABLE(of, geni_i2c_dt_match);
The I2C Master Hub is a stripped down version of the GENI Serial Engine QUP Wrapper Controller but only supporting I2C serial engines without DMA support. This adds the I2C Master Hub serial engine compatible along the specific requirements in a new desc struct passed throug the device match data. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> --- drivers/i2c/busses/i2c-qcom-geni.c | 8 ++++++++ 1 file changed, 8 insertions(+)