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[5/7] ALSA: emu10k1: remove apparently pointless FPGA reads

Message ID 20230421141006.1005539-5-oswald.buddenhagen@gmx.de (mailing list archive)
State Accepted
Commit 462d972d47a8a367c4c8ee28115778fae45d1992
Headers show
Series [1/7] ALSA: emu10k1: properly assert E-MU FPGA access constaints | expand

Commit Message

Oswald Buddenhagen April 21, 2023, 2:10 p.m. UTC 
These seem to be simply cargo-culted from the Windows driver's behavior.
However, the original reason were presumably read-modify-write cycles,
which we don't do.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
---
 sound/pci/emu10k1/emu10k1_main.c | 7 -------
 1 file changed, 7 deletions(-)
diff mbox series

Patch

diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index f7908e5a6e0d..ac0c8865c76b 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -885,32 +885,26 @@  static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 	dev_info(emu->card->dev, "emu1010: Card options = 0x%x\n", reg);
 	snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, &reg);
 	dev_info(emu->card->dev, "emu1010: Card options = 0x%x\n", reg);
-	snd_emu1010_fpga_read(emu, EMU_HANA_OPTICAL_TYPE, &tmp);
 	/* Optical -> ADAT I/O  */
 	/* 0 : SPDIF
 	 * 1 : ADAT
 	 */
 	emu->emu1010.optical_in = 1; /* IN_ADAT */
 	emu->emu1010.optical_out = 1; /* IN_ADAT */
 	tmp = 0;
 	tmp = (emu->emu1010.optical_in ? EMU_HANA_OPTICAL_IN_ADAT : 0) |
 		(emu->emu1010.optical_out ? EMU_HANA_OPTICAL_OUT_ADAT : 0);
 	snd_emu1010_fpga_write(emu, EMU_HANA_OPTICAL_TYPE, tmp);
-	snd_emu1010_fpga_read(emu, EMU_HANA_ADC_PADS, &tmp);
 	/* Set no attenuation on Audio Dock pads. */
 	snd_emu1010_fpga_write(emu, EMU_HANA_ADC_PADS, 0x00);
 	emu->emu1010.adc_pads = 0x00;
-	snd_emu1010_fpga_read(emu, EMU_HANA_DOCK_MISC, &tmp);
 	/* Unmute Audio dock DACs, Headphone source DAC-4. */
 	snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_MISC, 0x30);
 	snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2, 0x12);
-	snd_emu1010_fpga_read(emu, EMU_HANA_DAC_PADS, &tmp);
 	/* DAC PADs. */
 	snd_emu1010_fpga_write(emu, EMU_HANA_DAC_PADS, 0x0f);
 	emu->emu1010.dac_pads = 0x0f;
-	snd_emu1010_fpga_read(emu, EMU_HANA_DOCK_MISC, &tmp);
 	snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_MISC, 0x30);
-	snd_emu1010_fpga_read(emu, EMU_HANA_SPDIF_MODE, &tmp);
 	/* SPDIF Format. Set Consumer mode, 24bit, copy enable */
 	snd_emu1010_fpga_write(emu, EMU_HANA_SPDIF_MODE, 0x10);
 	/* MIDI routing */
@@ -1068,7 +1062,6 @@  static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 	snd_emu1010_fpga_write(emu, EMU_HANA_MIDI_OUT, 0x0c); /* Unknown */
 	snd_emu1010_fpga_write(emu, EMU_HANA_MIDI_IN, 0x19); /* MIDI Route */
 	snd_emu1010_fpga_write(emu, EMU_HANA_MIDI_OUT, 0x0c); /* Unknown */
-	snd_emu1010_fpga_read(emu, EMU_HANA_SPDIF_MODE, &tmp);
 	snd_emu1010_fpga_write(emu, EMU_HANA_SPDIF_MODE, 0x10); /* SPDIF Format spdif  (or 0x11 for aes/ebu) */
 
 #if 0