Re: [PATCH v6 3/9] phy: phy-can-transceiver: Add dual channel support for TJA1048
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: 2025-09-19 19:11:26
Also in:
imx, linux-can, linux-devicetree, linux-phy, lkml
On 09.09.2025 13:40:13, Peng Fan wrote:
quoted hunk ↗ jump to hunk
- Introduce new flag CAN_TRANSCEIVER_DUAL_CH to indicate the phy has two channels. - Alloc a phy for each channel - Support TJA1048 which is a dual high-speed CAN transceiver with sleep mode supported. - Add can_transceiver_phy_xlate for parsing phy Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> --- drivers/phy/phy-can-transceiver.c | 91 ++++++++++++++++++++++++++++----------- 1 file changed, 65 insertions(+), 26 deletions(-)diff --git a/drivers/phy/phy-can-transceiver.c b/drivers/phy/phy-can-transceiver.c index 6415c6af0e8414a6cc8d15958a17ee749a3f28e9..f06b1df76ada023f432dce892c3346f45397ab54 100644 --- a/drivers/phy/phy-can-transceiver.c +++ b/drivers/phy/phy-can-transceiver.c@@ -17,6 +17,7 @@ struct can_transceiver_data { u32 flags; #define CAN_TRANSCEIVER_STB_PRESENT BIT(0) #define CAN_TRANSCEIVER_EN_PRESENT BIT(1) +#define CAN_TRANSCEIVER_DUAL_CH BIT(2) }; struct can_transceiver_phy {@@ -29,6 +30,7 @@ struct can_transceiver_phy { struct can_transceiver_priv { struct can_transceiver_phy *can_transceiver_phy; struct mux_state *mux_state; + int num_ch;
As a flexible array this looks like:
struct can_transceiver_priv {
struct can_transceiver_phy *can_transceiver_phy;
int num_ch;
struct mux_state mux_state[] __counted_by(num_ch);
}
Marc
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