scsi: ufs-qcom: Name the dev_ref_clk_ctrl registers

In preparation for adding another optional register range to the ufs-qcom
driver, name the existing optional register range "dev_ref_clk_ctrl_mem".
This allows the driver to refer to the optional register ranges by name
rather than index.

No device-tree files actually have to be updated due to this change, since
none of them actually declares these registers.

Link: https://lore.kernel.org/r/20200710072013.177481-3-ebiggers@kernel.org
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 2e6ddb5cdfc23357f5ae9fa2fc5c05a190c74b34..bd0b4ed7b37a0e899e99f90bd2723fe37d738b25 100644 (file)
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1275,7 +1275,8 @@ static int ufs_qcom_init(struct ufs_hba *hba)
                host->dev_ref_clk_en_mask = BIT(26);
        } else {
                /* "dev_ref_clk_ctrl_mem" is optional resource */
-               res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+               res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+                                                  "dev_ref_clk_ctrl_mem");
                if (res) {
                        host->dev_ref_clk_ctrl_mmio =
                                        devm_ioremap_resource(dev, res);