From: Sarthak Garg <sartgarg@codeaurora.org>
Date: Fri, 22 May 2020 15:02:29 +0530
Subject: mmc: sdhci-msm: Introduce new ops to dump vendor specific registers
Git-commit: d1fe0762f3c6191bd182d20b5d9c287cb46e667b
Patch-mainline: v5.8-rc1
References: jsc#SLE-16106

Introduce new sdhci ops to dump vendor specific registers in the
sdhci_dumpregs during error.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1590139950-7288-8-git-send-email-sartgarg@codeaurora.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
 drivers/mmc/host/sdhci.c |    3 +++
 drivers/mmc/host/sdhci.h |    1 +
 2 files changed, 4 insertions(+)

--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -110,6 +110,9 @@ void sdhci_dumpregs(struct sdhci_host *h
 		}
 	}
 
+	if (host->ops->dump_vendor_regs)
+		host->ops->dump_vendor_regs(host);
+
 	SDHCI_DUMP("============================================\n");
 }
 EXPORT_SYMBOL_GPL(sdhci_dumpregs);
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -654,6 +654,7 @@ struct sdhci_ops {
 	void	(*voltage_switch)(struct sdhci_host *host);
 	void	(*adma_write_desc)(struct sdhci_host *host, void **desc,
 				   dma_addr_t addr, int len, unsigned int cmd);
+	void    (*dump_vendor_regs)(struct sdhci_host *host);
 };
 
 #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS