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Commit 9c473fc3 authored by Marc Kleine-Budde's avatar Marc Kleine-Budde
Browse files

can: mcp251x: optimize 2515, rx int gets cleared automatically 



Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
Acked-by: default avatarWolfgang Grandegger <wg@grandegger.com>
parent beab675c

drivers/net/can/mcp251x.c

+9 −4
Original line number Diff line number Diff line
@@ -793,14 +793,19 @@ static irqreturn_t mcp251x_can_ist(int irq, void *dev_id) 
		/* receive buffer 0 */

		if (intf & CANINTF_RX0IF) {

			mcp251x_hw_rx(spi, 0);

			/* Free one buffer ASAP */

			mcp251x_write_bits(spi, CANINTF, intf & CANINTF_RX0IF,

					   0x00);

			/*

			 * Free one buffer ASAP

			 * (The MCP2515 does this automatically.)

			 */

			if (mcp251x_is_2510(spi))

				mcp251x_write_bits(spi, CANINTF, CANINTF_RX0IF, 0x00);

		}



		/* receive buffer 1 */

		if (intf & CANINTF_RX1IF) {

			mcp251x_hw_rx(spi, 1);

			/* the MCP2515 does this automatically */

			if (mcp251x_is_2510(spi))

				clear_intf |= CANINTF_RX1IF;

		}