netdev - [PATCH net-next 20/47] can: ems

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Message-Id: <20230206131620.2758724-21-mkl@pengutronix.de>
Date:   Mon,  6 Feb 2023 14:15:53 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de,
        Gerhard Uttenthaler <uttenthaler@...-wuensche.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 20/47] can: ems_pci: Add IRQ enable

From: Gerhard Uttenthaler <uttenthaler@...-wuensche.com>

Add IRQ enable

Signed-off-by: Gerhard Uttenthaler <uttenthaler@...-wuensche.com>
Link: https://lore.kernel.org/all/20230120112616.6071-7-uttenthaler@ems-wuensche.com
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/sja1000/ems_pci.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/sja1000/ems_pci.c b/drivers/net/can/sja1000/ems_pci.c
index d1e8758d8043..1f237acd7bd1 100644
--- a/drivers/net/can/sja1000/ems_pci.c
+++ b/drivers/net/can/sja1000/ems_pci.c
@@ -372,14 +372,21 @@ static int ems_pci_add_card(struct pci_dev *pdev,
 			SET_NETDEV_DEV(dev, &pdev->dev);
 			dev->dev_id = i;
 
-			if (card->version == 1)
+			if (card->version == 1) {
 				/* reset int flag of pita */
 				writel(PITA2_ICR_INT0_EN | PITA2_ICR_INT0,
 				       card->conf_addr + PITA2_ICR);
-			else
+			} else if (card->version == 2) {
 				/* enable IRQ in PLX 9030 */
 				writel(PLX_ICSR_ENA_CLR,
 				       card->conf_addr + PLX_ICSR);
+			} else {
+				/* Enable IRQ in AX99100 */
+				writel(ASIX_LINTSR_INT0AC, card->conf_addr + ASIX_LINTSR);
+				/* Enable local INT0 input enable */
+				writel(readl(card->conf_addr + ASIX_LIEMR) | ASIX_LIEMR_L0EINTEN,
+				       card->conf_addr + ASIX_LIEMR);
+			}
 
 			/* Register SJA1000 device */
 			err = register_sja1000dev(dev);
-- 
2.39.1