From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH 2/2] i2c: qcom-geni: Provide an option to disable DMA processing Date: Thu, 5 Sep 2019 11:18:00 +0200 Message-ID: <20190905091800.GD1157@kunai> References: <20190905075213.13260-1-lee.jones@linaro.org> <20190905075213.13260-2-lee.jones@linaro.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="xB0nW4MQa6jZONgY" Return-path: Content-Disposition: inline In-Reply-To: <20190905075213.13260-2-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Lee Jones Cc: alokc@codeaurora.org, agross@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, bjorn.andersson@linaro.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, vkoul@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org --xB0nW4MQa6jZONgY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > Fixes: 8bc529b25354 ("soc: qcom: geni: Add support for ACPI") Are you sure? From visual inspection, I don't see a correlation between this commit and the fix here. > Signed-off-by: Lee Jones > Reviewed-by: Vinod Koul > --- > drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++---- > 1 file changed, 10 insertions(+), 4 deletions(-) >=20 > diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-= qcom-geni.c > index a89bfce5388e..8822dea82980 100644 > --- a/drivers/i2c/busses/i2c-qcom-geni.c > +++ b/drivers/i2c/busses/i2c-qcom-geni.c > @@ -353,13 +353,16 @@ static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev= *gi2c) > static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg= *msg, > u32 m_param) > { > + struct device_node *np =3D gi2c->se.dev->of_node; > dma_addr_t rx_dma; > unsigned long time_left; > - void *dma_buf; > + void *dma_buf =3D NULL; > struct geni_se *se =3D &gi2c->se; > size_t len =3D msg->len; > =20 > - dma_buf =3D i2c_get_dma_safe_msg_buf(msg, 32); > + if (!of_property_read_bool(np, "qcom,geni-se-no-dma")) > + dma_buf =3D i2c_get_dma_safe_msg_buf(msg, 32); > + > if (dma_buf) > geni_se_select_mode(se, GENI_SE_DMA); > else > @@ -392,13 +395,16 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev = *gi2c, struct i2c_msg *msg, > static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg= *msg, > u32 m_param) > { > + struct device_node *np =3D gi2c->se.dev->of_node; > dma_addr_t tx_dma; > unsigned long time_left; > - void *dma_buf; > + void *dma_buf =3D NULL; > struct geni_se *se =3D &gi2c->se; > size_t len =3D msg->len; > =20 > - dma_buf =3D i2c_get_dma_safe_msg_buf(msg, 32); > + if (!of_property_read_bool(np, "qcom,geni-se-no-dma")) > + dma_buf =3D i2c_get_dma_safe_msg_buf(msg, 32); > + > if (dma_buf) > geni_se_select_mode(se, GENI_SE_DMA); > else > --=20 > 2.17.1 >=20 --xB0nW4MQa6jZONgY Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl1w0sgACgkQFA3kzBSg KbZAkhAAqLidEFMA6FK2iigoU4Bb521+nLwBTqlnG9ahMrhVVQmIKDARK++TEvwm 6DKw2OxJDCx/hXpnWy5U1TAj8x9Q09BWol8xTjT7paGKdek65kB/EbfvwCqCFfdO 5J34MIIYgu6o6BjvfN3OCcwLFg2ubYm76kIS/wjPpocPVEoUBCtyrK+fXIsp21eB kmcvGyYY+3O69bjNoGdpdV3SLQyh0LRCmxPKi0ogIU8+hY+S5DpA3HaEkzb75KgV zla+6XVWtROIA8OnNsPt8lZruy4tbP5JHq+zrxel1/GEDX45jPxLINqz2ei1tZJ2 szJMBeMO6Brq1i1qgbK6/c610FdJV+G/9OhkeY6B0iKp6FaoeuiEGuQLxZvJoEpM Y+bSw/8i2h+RCZh187XcpOM3M8Ulqzje3Ruk1xsqJXb6bWuy/Tm5BiCAWUCO62gk R9/wLxQgKg3HpyQYqatk0POPGhj5Wl+vH4A2XO5V36wqV6YMVQn+RFuRREfndDmP tFAk6i4Rn54l9f3CtKP8cB16zSplO0d9vO8LKEhG3HtFUsvOBxeq+IMW1YA9tTGP DRjTu3Dbme8P2BrUsB2gWglzNC2xRY489FM9Oik2qL3YrXqLcE2LeGh3bOvuet1R cESLKwr6DFkLrbvbKv1V/1+e+cUdtt3PGQPLh/08KbKqpdvB16s= =vkLL -----END PGP SIGNATURE----- --xB0nW4MQa6jZONgY--