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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org,
	wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org,
	david.brown-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	Karthik Ramasubramanian
	<kramasub-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	hch-jcswGhMUV9g@public.gmane.org,
	corbet-T1hC0tSOHrs@public.gmane.org,
	linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	evgreen-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	linux-serial-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	jslaby-IBi9RG/b67k@public.gmane.org,
	andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	Stephen Boyd <sboyd-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Stephen Boyd <swboyd-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	Sagar Dharia <sdharia-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	Girish Mahadevan
	<girishm-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	acourbot-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [PATCH v3 2/4] soc: qcom: Add GENI based QUP Wrapper driver
Date: Thu, 8 Mar 2018 15:41:43 +0100	[thread overview]
Message-ID: <20180308144143.GB23266@lst.de> (raw)
In-Reply-To: <8567be1b-1431-4f1d-cb41-6a7eaa434438-5wv7dgnIgG8@public.gmane.org>

On Thu, Mar 08, 2018 at 01:24:45PM +0000, Robin Murphy wrote:
> Implementing dma_map_ops inside a driver for real hardware is almost always 
> the wrong thing to do.

Agreed.  dma_map_ops should be a platform decision based on the bus.

Even our dma_virt_ops basically just works around bad driver layering.

  parent reply	other threads:[~2018-03-08 14:41 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-28  1:38 [PATCH v3 0/4] Introduce GENI SE Controller Driver Karthikeyan Ramasubramanian
2018-02-28  1:38 ` [PATCH v3 1/4] dt-bindings: soc: qcom: Add device tree binding for GENI SE Karthikeyan Ramasubramanian
2018-03-05 23:58   ` Rob Herring
2018-03-06  0:55     ` Karthik Ramasubramanian
2018-03-06 13:22       ` Rob Herring
2018-03-06 17:13         ` Karthik Ramasubramanian
2018-02-28  1:38 ` [PATCH v3 2/4] soc: qcom: Add GENI based QUP Wrapper driver Karthikeyan Ramasubramanian
2018-03-02 20:41   ` Stephen Boyd
2018-03-02 20:58     ` Evan Green
2018-03-03  0:58     ` Karthik Ramasubramanian
2018-03-06 21:56       ` Stephen Boyd
     [not found]         ` <152037339742.218381.11498404122038956963-n1Xw8LXHxjTHt/MElyovVYaSKrA+ACpX0E9HWUfgJXw@public.gmane.org>
2018-03-08  6:46           ` Karthik Ramasubramanian
     [not found]             ` <945b6c00-dde6-6ec7-4577-4cc0d034796b-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-03-08 13:24               ` Robin Murphy
     [not found]                 ` <8567be1b-1431-4f1d-cb41-6a7eaa434438-5wv7dgnIgG8@public.gmane.org>
2018-03-08 14:41                   ` Christoph Hellwig [this message]
2018-03-08 18:18                   ` Karthik Ramasubramanian
2018-03-09 18:18         ` Karthik Ramasubramanian
2018-02-28  1:38 ` [PATCH v3 3/4] i2c: i2c-qcom-geni: Add bus driver for the Qualcomm GENI I2C controller Karthikeyan Ramasubramanian
2018-03-07 21:16   ` [v3, " Doug Anderson
2018-03-08  2:42     ` Sagar Dharia
2018-03-08  5:19       ` Doug Anderson
2018-03-08 21:12         ` Doug Anderson
2018-03-09  1:06           ` Sagar Dharia
2018-03-09  5:02             ` Doug Anderson
2018-03-09  1:27         ` Sagar Dharia
2018-03-09  6:43     ` Karthik Ramasubramanian
2018-02-28  1:38 ` [PATCH v3 4/4] tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP Karthikeyan Ramasubramanian
2018-03-02 22:11   ` Stephen Boyd
2018-03-06  0:51     ` Karthik Ramasubramanian
2018-03-06 21:45       ` Stephen Boyd
2018-03-08  6:06         ` Karthik Ramasubramanian
2018-03-08 22:32           ` Stephen Boyd
2018-03-09  4:57             ` Karthik Ramasubramanian
2018-03-03  0:11   ` Evan Green
2018-03-13 20:16     ` Karthik Ramasubramanian
2018-03-16 18:39       ` Evan Green

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