Re: [PATCH 1/7] usb: typec: ucsi: add PMIC Glink UCSI driver

From: Neil Armstrong
Date: Fri Feb 10 2023 - 05:31:18 EST


On 31/01/2023 10:16, Greg Kroah-Hartman wrote:
On Mon, Jan 30, 2023 at 10:54:32AM +0100, Neil Armstrong wrote:
Introduce the UCSI PMIC Glink aux driver that communicates
with the aDSP firmware with the UCSI protocol which handles
the USB-C Port(s) Power Delivery.

The UCSI messaging is necessary on newer Qualcomm SoCs to
provide USB role switch and altmode notifications.

Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
drivers/usb/typec/ucsi/Kconfig | 7 +
drivers/usb/typec/ucsi/Makefile | 1 +
drivers/usb/typec/ucsi/ucsi_glink.c | 321 ++++++++++++++++++++++++++++++++++++
3 files changed, 329 insertions(+)

diff --git a/drivers/usb/typec/ucsi/Kconfig b/drivers/usb/typec/ucsi/Kconfig
index 8f9c4b9f31f7..dee6069e46a2 100644
--- a/drivers/usb/typec/ucsi/Kconfig
+++ b/drivers/usb/typec/ucsi/Kconfig
@@ -58,4 +58,11 @@ config UCSI_STM32G0
To compile the driver as a module, choose M here: the module will be
called ucsi_stm32g0.
+config UCSI_PMIC_GLINK
+ tristate "UCSI Qualcomm PMIC GLINK Interface Driver"
+ depends on QCOM_PMIC_GLINK

No way to test build this code without this option?

Nop, the QCOM_PMIC_GLINK is a build dependency, this can't be removed


+ help
+ This driver enables UCSI support on platforms that expose UCSI
+ interface as PMIC GLINK device.

Module name when built?

OK will add a follow-patch if needed

Thanks,
Neil


A follow-on patch can be sent, this is minor.

thanks,

greg k-h