From 843822ad631889596d67716e6edbcde608aeba81 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 23 Oct 2006 15:24:23 +0200 Subject: [PATCH] [SCSI] aic79xx: set precompensation aic79xx has a special 'iocell' chip which handles the precompensation. If it's set via DV we should make sure to set the chip correctly, too. Signed-off-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/aic7xxx/aic79xx_osm.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index 5e13046d845b..e7a32f8e1a5c 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -2636,8 +2636,22 @@ static void ahd_linux_set_pcomp_en(struct scsi_target *starget, int pcomp) pcomp ? "Enable" : "Disable"); #endif - if (pcomp) + if (pcomp) { + uint8_t precomp; + + if (ahd->unit < ARRAY_SIZE(aic79xx_iocell_info)) { + struct ahd_linux_iocell_opts *iocell_opts; + + iocell_opts = &aic79xx_iocell_info[ahd->unit]; + precomp = iocell_opts->precomp; + } else { + precomp = AIC79XX_DEFAULT_PRECOMP; + } ppr_options |= MSG_EXT_PPR_PCOMP_EN; + AHD_SET_PRECOMP(ahd, precomp); + } else { + AHD_SET_PRECOMP(ahd, 0); + } ahd_compile_devinfo(&devinfo, shost->this_id, starget->id, 0, starget->channel + 'A', ROLE_INITIATOR); -- 2.20.1