linux-kernel - [PATCH] misc: rtsx: Remove deadcode

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Message-ID: <20250420145739.58337-1-linux@treblig.org>
Date: Sun, 20 Apr 2025 15:57:39 +0100
From: linux@...blig.org
To: arnd@...db.de,
	gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] misc: rtsx: Remove deadcode

From: "Dr. David Alan Gilbert" <linux@...blig.org>

The last uses of rtsx_ms_power_off_card3v3() and
rtsx_sd_power_off_card3v3() were removed by 2019's
commit bede03a579b3 ("misc: rtsx: Enable OCP for rts522a rts524a rts525a
rts5260")

The last use of rtsx_pci_transfer_data() was removed by 2024's
commit d0f459259c13 ("memstick: rtsx_pci_ms: Remove Realtek PCI memstick
driver")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/misc/cardreader/rtsx_pcr.c | 46 ------------------------------
 drivers/misc/cardreader/rtsx_pcr.h |  2 --
 include/linux/rtsx_pci.h           |  2 --
 3 files changed, 50 deletions(-)

diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index be3d4e0e50cc..a7b066c48740 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -420,25 +420,6 @@ static void rtsx_pci_add_sg_tbl(struct rtsx_pcr *pcr,
 	pcr->sgi++;
 }
 
-int rtsx_pci_transfer_data(struct rtsx_pcr *pcr, struct scatterlist *sglist,
-		int num_sg, bool read, int timeout)
-{
-	int err = 0, count;
-
-	pcr_dbg(pcr, "--> %s: num_sg = %d\n", __func__, num_sg);
-	count = rtsx_pci_dma_map_sg(pcr, sglist, num_sg, read);
-	if (count < 1)
-		return -EINVAL;
-	pcr_dbg(pcr, "DMA mapping count: %d\n", count);
-
-	err = rtsx_pci_dma_transfer(pcr, sglist, count, read, timeout);
-
-	rtsx_pci_dma_unmap_sg(pcr, sglist, num_sg, read);
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(rtsx_pci_transfer_data);
-
 int rtsx_pci_dma_map_sg(struct rtsx_pcr *pcr, struct scatterlist *sglist,
 		int num_sg, bool read)
 {
@@ -1197,33 +1178,6 @@ void rtsx_pci_disable_oobs_polling(struct rtsx_pcr *pcr)
 
 }
 
-int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr)
-{
-	rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
-		MS_CLK_EN | SD40_CLK_EN, 0);
-	rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
-	rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
-
-	msleep(50);
-
-	rtsx_pci_card_pull_ctl_disable(pcr, RTSX_SD_CARD);
-
-	return 0;
-}
-
-int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr)
-{
-	rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
-		MS_CLK_EN | SD40_CLK_EN, 0);
-
-	rtsx_pci_card_pull_ctl_disable(pcr, RTSX_MS_CARD);
-
-	rtsx_pci_write_register(pcr, CARD_OE, MS_OUTPUT_EN, 0);
-	rtsx_pci_card_power_off(pcr, RTSX_MS_CARD);
-
-	return 0;
-}
-
 static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
 {
 	struct pci_dev *pdev = pcr->pci;
diff --git a/drivers/misc/cardreader/rtsx_pcr.h b/drivers/misc/cardreader/rtsx_pcr.h
index 9215d66de00c..8e5951b61143 100644
--- a/drivers/misc/cardreader/rtsx_pcr.h
+++ b/drivers/misc/cardreader/rtsx_pcr.h
@@ -127,7 +127,5 @@ int rtsx_pci_get_ocpstat(struct rtsx_pcr *pcr, u8 *val);
 void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr);
 void rtsx_pci_enable_oobs_polling(struct rtsx_pcr *pcr);
 void rtsx_pci_disable_oobs_polling(struct rtsx_pcr *pcr);
-int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr);
-int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr);
 
 #endif
diff --git a/include/linux/rtsx_pci.h b/include/linux/rtsx_pci.h
index 4612ef09a0c7..3b4c36705a9b 100644
--- a/include/linux/rtsx_pci.h
+++ b/include/linux/rtsx_pci.h
@@ -1312,8 +1312,6 @@ void rtsx_pci_add_cmd(struct rtsx_pcr *pcr,
 		u8 cmd_type, u16 reg_addr, u8 mask, u8 data);
 void rtsx_pci_send_cmd_no_wait(struct rtsx_pcr *pcr);
 int rtsx_pci_send_cmd(struct rtsx_pcr *pcr, int timeout);
-int rtsx_pci_transfer_data(struct rtsx_pcr *pcr, struct scatterlist *sglist,
-		int num_sg, bool read, int timeout);
 int rtsx_pci_dma_map_sg(struct rtsx_pcr *pcr, struct scatterlist *sglist,
 		int num_sg, bool read);
 void rtsx_pci_dma_unmap_sg(struct rtsx_pcr *pcr, struct scatterlist *sglist,
-- 
2.49.0