Date: Sun, 3 Nov 2019 20:44:16 +0000 (UTC) From: Vladimir Kondratyev <wulf@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354295 - head/sys/dev/ichiic Message-ID: <201911032044.xA3KiGTb058832@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: wulf Date: Sun Nov 3 20:44:16 2019 New Revision: 354295 URL: https://svnweb.freebsd.org/changeset/base/354295 Log: [ig4] Do not wait for interrupts in set_controller() routine Specs shows no dedicated interrupt firing on disable of the controller. Remove io lock acquisitions around set_controller() calls as they are not needed anymore. Modified: head/sys/dev/ichiic/ig4_iic.c Modified: head/sys/dev/ichiic/ig4_iic.c ============================================================================== --- head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:43:02 2019 (r354294) +++ head/sys/dev/ichiic/ig4_iic.c Sun Nov 3 20:44:16 2019 (r354295) @@ -135,10 +135,7 @@ set_controller(ig4iic_softc_t *sc, uint32_t ctl) error = 0; break; } - if (cold) - DELAY(1000); - else - mtx_sleep(sc, &sc->io_lock, 0, "i2cslv", 1); + pause("i2cslv", 1); } return (error); } @@ -600,20 +597,16 @@ ig4iic_attach(ig4iic_softc_t *sc) } #endif - mtx_lock(&sc->io_lock); if (set_controller(sc, 0)) { device_printf(sc->dev, "controller error during attach-1\n"); - mtx_unlock(&sc->io_lock); error = ENXIO; goto done; } if (set_controller(sc, IG4_I2C_ENABLE)) { device_printf(sc->dev, "controller error during attach-2\n"); - mtx_unlock(&sc->io_lock); error = ENXIO; goto done; } - mtx_unlock(&sc->io_lock); error = bus_setup_intr(sc->dev, sc->intr_res, INTR_TYPE_MISC | INTR_MPSAFE, NULL, ig4iic_intr, sc, &sc->intr_handle); if (error) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201911032044.xA3KiGTb058832>