lkml.org 
[lkml]   [2023]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 4/9] PCI: imx6: Using "linux,pci-domain" as slot ID
Date
Avoid use get slot id by compared with register physical address. If there
are more than 2 slots, compared logic will become complex.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
---

Notes:
Change from v1 to v2
- fix of_get_pci_domain_nr return value check logic

drivers/pci/controller/dwc/pci-imx6.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 509d459bdc5a1..548034151ee1a 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -33,6 +33,7 @@
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>

+#include "../../pci.h"
#include "pcie-designware.h"

#define IMX8MQ_GPR_PCIE_REF_USE_PAD BIT(9)
@@ -1327,6 +1328,12 @@ static int imx6_pcie_probe(struct platform_device *pdev)
"Failed to get PCIEPHY reset control\n");
}

+ /* Using linux,pci-domain as PCI slot id */
+ imx6_pcie->controller_id = of_get_pci_domain_nr(node);
+ /* If there are not "linux,pci-domain" in dts file, means only 1 controller */
+ if (imx6_pcie->controller_id < 0)
+ imx6_pcie->controller_id = 0;
+
switch (imx6_pcie->drvdata->variant) {
case IMX7D:
if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR)
--
2.34.1
\
 
 \ /
  Last update: 2023-12-07 20:40    [W:0.084 / U:0.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site