misc: rtsx: Remove unused pcr_ops

Remove the following unused function pointers from struct pcr_ops:

  int (*set_ltr_latency)(struct rtsx_pcr *pcr, u32 latency);
  int (*set_l1off_sub)(struct rtsx_pcr *pcr, u8 val);
  void (*full_on)(struct rtsx_pcr *pcr);
  void (*power_saving)(struct rtsx_pcr *pcr);

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20200521180545.1159896-2-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/cardreader/rtsx_pcr.c

@@ -85,10 +85,7 @@ static int rtsx_comm_set_ltr_latency(struct rtsx_pcr *pcr, u32 latency)
 
 int rtsx_set_ltr_latency(struct rtsx_pcr *pcr, u32 latency)
 {
-	if (pcr->ops->set_ltr_latency)
-		return pcr->ops->set_ltr_latency(pcr, latency);
-	else
-		return rtsx_comm_set_ltr_latency(pcr, latency);
+	return rtsx_comm_set_ltr_latency(pcr, latency);
 }
 
 static void rtsx_comm_set_aspm(struct rtsx_pcr *pcr, bool enable)
@@ -151,10 +148,7 @@ static void rtsx_comm_pm_full_on(struct rtsx_pcr *pcr)
 
 static void rtsx_pm_full_on(struct rtsx_pcr *pcr)
 {
-	if (pcr->ops->full_on)
-		pcr->ops->full_on(pcr);
-	else
-		rtsx_comm_pm_full_on(pcr);
+	rtsx_comm_pm_full_on(pcr);
 }
 
 void rtsx_pci_start_run(struct rtsx_pcr *pcr)
@@ -1108,10 +1102,7 @@ static void rtsx_comm_pm_power_saving(struct rtsx_pcr *pcr)
 
 static void rtsx_pm_power_saving(struct rtsx_pcr *pcr)
 {
-	if (pcr->ops->power_saving)
-		pcr->ops->power_saving(pcr);
-	else
-		rtsx_comm_pm_power_saving(pcr);
+	rtsx_comm_pm_power_saving(pcr);
 }
 
 static void rtsx_pci_idle_work(struct work_struct *work)

include/linux/rtsx_pci.h

@@ -1080,11 +1080,7 @@ struct pcr_ops {
 	void		(*stop_cmd)(struct rtsx_pcr *pcr);
 
 	void (*set_aspm)(struct rtsx_pcr *pcr, bool enable);
-	int (*set_ltr_latency)(struct rtsx_pcr *pcr, u32 latency);
-	int (*set_l1off_sub)(struct rtsx_pcr *pcr, u8 val);
 	void (*set_l1off_cfg_sub_d0)(struct rtsx_pcr *pcr, int active);
-	void (*full_on)(struct rtsx_pcr *pcr);
-	void (*power_saving)(struct rtsx_pcr *pcr);
 	void (*enable_ocp)(struct rtsx_pcr *pcr);
 	void (*disable_ocp)(struct rtsx_pcr *pcr);
 	void (*init_ocp)(struct rtsx_pcr *pcr);