On Thu, May 07, 2020 at 07:37:50PM +0530, Manivannan Sadhasivam wrote:

Hi Greg,

On Mon, Apr 20, 2020 at 10:32:02PM +0530, mani@kernel.org wrote:

quoted

From: Manivannan Sadhasivam <mani@kernel.org>

Hello,

This patchset adds CTS/RTS gpio support to STM32 UART controller.
Eventhough the UART controller supports using dedicated CTS/RTS gpios,
sometimes we need to use different set of gpios for flow control.

This is necessary for the upcoming STM32MP1 based board called Stinger96
IoT-Box. On that board, a bluetooth chip is connected to one of the UART
controller but the CTS/RTS lines got swapped mistakenly. So this patchset
serves as a workaround for that hardware bug and also supports the
usecase of using any gpio for CTS/RTS functionality. As per the sugggestion
provided by Andy for v1, I've now switched to mctrl_gpio driver.

This patchset has been validated with Stinger96 IoT-Box connected to Murata
WiFi-BT combo chip.

Are you planning to take this series for 5.8?

I had to wait for the DT protion to be reviewed before I could do
anything.  Give me some time, if it looks ok, it will go into 5.8.

thanks,

greg k-h

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